CN102954471A - Ejector and gas range - Google Patents
Ejector and gas range Download PDFInfo
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- CN102954471A CN102954471A CN2011102536503A CN201110253650A CN102954471A CN 102954471 A CN102954471 A CN 102954471A CN 2011102536503 A CN2011102536503 A CN 2011102536503A CN 201110253650 A CN201110253650 A CN 201110253650A CN 102954471 A CN102954471 A CN 102954471A
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Abstract
The invention relates to an ejector of a cooking bench and a gas range. The ejector comprises a burner base provided with a gas mixing chamber and an interface, which are communicated with each other; and an ejection tube is provided with an inlet and an outlet, wherein the outlet of the ejection tube is connected with the interface of the burner base. According to the technical scheme provided by the invention, the mixing degree of fuel gas and air can be improved, and the safety of the ejector can be enhanced.
Description
Technical field
The present invention relates to the gas-cooker technical field, particularly a kind of injector and gas-cooker.
Background technology
Gas-cooker is family's kitchen range commonly used in people's daily life, and gas-cooker mainly is the kitchen range that burn take LFG as fuel.LFG can be natural gas, liquefied gas, biogas etc., and different according to the kind of LFG, it is multiple that gas-cooker can be divided into, such as liquefied gas cooker, gas range, natural gas range etc.Certainly, gas-cooker can also be divided into according to the difference of its structure single kitchen range, two kitchen ranges, single-hole range, multi-hole kitchen range, desk-top kitchen range, embedded kitchen range etc.
The injector that is arranged in the gas-cooker is important parts of gas-cooker, and its Main Function is that combustion gas is fully mixed to reach clean-burning result with air according to certain ratio.Gas-cooker adopts different sources of the gas in the process of work, the needed air capacity of burning is different, so need to pass into combustion gas and air in the import of the induction tunnel of injector, both could realize fully burning after mixing according to ratio, reach preferably heat supply.
It is raw material that the material of existing injector mostly adopts cast iron, and induction tunnel mostly adopts the manufacturing of founding technique.Because the technical limitations of founding technique itself, cause the surface of inwall of induction tunnel very coarse, and be difficult to be improved by secondary operations such as polishings.This is so that after the combustion gas of injecting from the import of induction tunnel and air enter induction tunnel, because coarse surface causes air current flow to be obstructed, cause flow velocity to descend, thereby cause the unstable impact of air-flow velocity to the air feed of gas-cooker, reduce combustibility, affected the heat supply of gas-cooker.
In addition, the corrosion resistance of cast iron is relatively poor, long hot operation, the in addition environment of many water in kitchen heavy wool, the induction tunnel place is easy to oxidized corrosion, and this has not only reduced the service life of injector, and oxide etch is easy to stay the slit at induction tunnel, cause the situation of gas leakage, brought great potential safety hazard.
Therefore how to improve the degree of mixing of combustion gas and air, and the security that improves injector, one of present problem demanding prompt solution become.
Summary of the invention
The problem that the present invention solves is to improve the degree of mixing of combustion gas and air, and the security that improves injector.
For addressing the above problem, technical scheme of the present invention provides a kind of injector of the kitchen range top, comprising:
Furnace end base, described furnace end base has mixing chamber and interface, and described mixing chamber and described interface communicate;
Induction tunnel, described induction tunnel has import and outlet, and the outlet of described induction tunnel is connected with the interface of described furnace end base.
Optionally, the surface of the inwall of described induction tunnel is streamlined curved surface.
Optionally, the material of described furnace end base is exotic material, and heat resisting temperature is more than or equal to 700 degree; The material of described induction tunnel is exotic material, and heat resisting temperature is more than or equal to 500 degree.
Optionally, the material of described furnace end base is different from the material of described induction tunnel.
Optionally, the material of described furnace end base is cast iron, copper, stainless steel, pottery or aluminium, and the material of described induction tunnel is stainless steel, copper, aluminium or pottery.
Optionally, described injector also comprises the fixture of the interface of the outlet of fixing described induction tunnel and described furnace end base.
Optionally, the diameter of the outlet of described induction tunnel is less than the diameter of the interface of described furnace end base.
Optionally, described fixture is clip, the outlet of described induction tunnel has annular groove, the interface of described furnace end base has the strip gab that matches with described annular groove, interface and described annular groove that described furnace end base is stretched in the outlet of described induction tunnel align with described strip gab, and described clip embeds described annular groove.
Optionally, described fixture is ring-grooved rivet, the outlet of described induction tunnel has the first installing hole, the interface of described furnace end base has the second installing hole that matches with described the first installing hole, interface and described the first installing hole that described furnace end base is stretched in the outlet of described induction tunnel align with the second installing hole, and described ring-grooved rivet inserts described the first installing hole and the second installing hole.
Optionally, the outlet of the interface of described furnace end base and described induction tunnel is weldingly connected and connects.
Optionally, the interface of described furnace end base has screw thread, and the outlet of described induction tunnel has the screw thread that matches with the screw thread of the interface of described furnace end base, and the outlet spiral of the interface of described furnace end base and described induction tunnel is twisted and connect.
Optionally, the interface of described furnace end base has projection, and the outlet of described induction tunnel has the groove that matches with described projection, the outlet engagement connection of the interface of described furnace end base and described induction tunnel.
Optionally, described induction tunnel comprises the first induction tunnel and the second induction tunnel, the interface of described furnace end base comprises first interface and the second interface, described mixing chamber comprises the first mixing chamber and the second mixing chamber, described first interface communicates with described the first mixing chamber, described the second interface communicates with described the second mixing chamber, and the outlet of described the first induction tunnel is connected with the first interface of described furnace end base, and the outlet of described the second induction tunnel is connected with the second interface of described furnace end base.
Technical scheme of the present invention also provides a kind of gas-cooker that comprises the injector of the aforesaid kitchen range top.
Compared with prior art, the present invention has the following advantages:
Injector is carried out the split design, be divided into furnace end base and induction tunnel, be convenient to installation, dismounting and the maintenance of injector.The surface of the inwall of induction tunnel is streamlined curved surface, and this has reduced the resistance that air-flow flows in induction tunnel, improved flow velocity, thereby improved the fluency to the gas-cooker air feed, has strengthened combustibility, is conducive to the heat supply of gas-cooker.
Furnace end base and induction tunnel adopt high temperature resistant material, have strengthened to a certain extent heat-resisting, the fire-resistant and corrosion resistance of furnace end base and induction tunnel.
Description of drawings
Fig. 1 is the explosive view of the injector that provides of the embodiment of the invention;
Fig. 2 is the three-dimensional left view of the clip that provides of the embodiment of the invention;
Fig. 3 is the three-dimensional right view of the clip that provides of the embodiment of the invention;
Fig. 4 is the stereogram of the injector that provides of the embodiment of the invention;
Fig. 5 is the front view of the injector that provides of the embodiment of the invention.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can be in the situation that do similar popularization without prejudice to intension of the present invention.Therefore the present invention is not subjected to the restriction of the following public specific embodiment.
The injector that is arranged in the gas-cooker is important parts of gas-cooker, and its Main Function is that combustion gas is fully mixed to reach clean-burning result with air according to certain ratio.Gas-cooker adopts different combustion gas in the process of work, the needed air capacity of burning is different, so need to pass into combustion gas and air in the import of the induction tunnel of injector, both could realize fully burning after mixing according to ratio, reach preferably heat supply.
Fig. 1 is the explosive view of the injector that provides of the embodiment of the invention, describes in detail below in conjunction with Fig. 1 to Fig. 3.
The injector 100 that the embodiment of the invention provides comprises:
Furnace end base 1, furnace end base 1 has mixing chamber and interface, and described mixing chamber and described interface communicate.
Induction tunnel, induction tunnel have import and outlet, and the outlet of induction tunnel is connected with the interface of furnace end base 1.
In the present embodiment, induction tunnel comprises two, is respectively the first induction tunnel 21 and the second induction tunnel 22.The import 211 of the first induction tunnel 21 communicates with outlet 212; The import 221 of the second induction tunnel 22 communicates with outlet 222.
The interface of furnace end base 1 comprises two, is respectively first interface 112 and the second interface 122, and the mixing chamber of furnace end base 1 also is two, is respectively the first mixing chamber 11 and the second mixing chamber 12.First interface 112 communicates with the first mixing chamber 11, and the second interface 122 and the second mixing chamber 12 communicate.The interface of furnace end base 1 is generally pore shape interface, specifically, at furnace end base 1 opening is set exactly, and then opening part arranges a segment pipe, first interface 112 and second interface 122 of formation pore shape interface as shown in Figure 1.
The outlet 212 of the first induction tunnel 21 is connected with the first interface 112 of furnace end base 1; The outlet 222 of the second induction tunnel 22 is connected with the second interface 122 of furnace end base 1.
Therefore the first induction tunnel 21 first mixing chambers 11 communicate; The second induction tunnel 22 communicates with the second mixing chamber 12.
The interface (abbreviation of first interface and the second interface) of the outlet of induction tunnel (abbreviation of the first induction tunnel and the second induction tunnel) and furnace end base 1 is fixing by fixture 3.
The fixture 3 that adopts in the present embodiment is clip, and the below describes clip in detail and how to fix the outlet of described induction tunnel and the interface of furnace end base 1.
Comprising two induction tunnels in the present embodiment, is respectively the first induction tunnel 21 and the second induction tunnel 22.Two induction tunnels are identical with the installation of furnace end base 1.
Specifically, at the outer wall of the outlet 212 of the first induction tunnel 21 annular groove 213 is set, annular groove 213 can be the annular annular groove around outlet 212, also can be the circular arc-shaped ring groove around outlet 212.It also can be a plurality of that the number of annular groove 213 can be one, decides according to the design needs.
Outer wall at first interface 112 arranges strip gab 123, and strip gab 123 is complementary with annular groove 213, and namely annular groove 213 is corresponding with the position of strip gab 123.The outlet 212 of the first induction tunnel 21 is stretched in the first interface 112, until annular groove 213 coincide with strip gab 123, clip is embedded annular groove 213 by strip gab 123, tie up the tighten clip, thereby reach fixedly first interface 112 and outlet 212 purposes.
In like manner, at the outer wall of the outlet 222 of the second induction tunnel 22 annular groove 223 is set, annular groove 223 can be the annular annular groove around outlet 222, also can be the circular arc-shaped ring groove around outlet 222.It also can be a plurality of that the number of annular groove 223 can be one, decides according to the design needs.
Outer wall at the second interface 122 arranges strip gab 113, and strip gab 113 is complementary with annular groove 223, and namely annular groove 223 is corresponding with the position of strip gab 113.The outlet 222 of the second induction tunnel 22 is stretched in the second interface 122, until annular groove 223 coincide with strip gab 113, clip is embedded annular groove 223 by strip gab 113, tie up the tighten clip, fix the second interface 122 and outlet 222 purposes thereby reach.
Fig. 2 is the three-dimensional left view of the clip that provides of the embodiment of the invention, and Fig. 3 is the three-dimensional right view of the clip that provides of the embodiment of the invention.Clip 31 adopts stainless steel to make stainless steel wire in the present embodiment, is used for tying up the outlet of induction tunnel and the interface of furnace end base 1.In other embodiments, the material of clip 31 can also adopt the materials such as aluminium, iron, rubber to make.
In the present embodiment, the section of the outlet of induction tunnel is rounded, and the section of the interface of furnace end base 1 is also rounded, and the diameter of the outlet of induction tunnel is less than the diameter of the interface of furnace end base 1.This is in order to make things convenient for being connected with fixing of induction tunnel and furnace end base 1, the outlet of induction tunnel to be stretched into the interface of furnace end base 1 and installed fixing.In other embodiments, the geometric figure such as the section of the outlet of induction tunnel also can ovalize, rectangle, triangle, the section of the interface of furnace end base 1 also can ovalize, the geometric figure such as rectangle, triangle.When the outlet of connection induction tunnel and the interface of furnace end base 1, also the interface of furnace end base 1 can be stretched into the outlet of induction tunnel connection is installed.
Fig. 4 is the stereogram of the injector that provides of the embodiment of the invention, furnace end base 1, induction tunnel by clip 31 install connect after, form injector shown in Figure 4.
In the present embodiment, furnace end base 1 is connected clip 31 connection is installed with induction tunnel, in other embodiments, can also take other embodiment that connection is installed.
For example, fixture can adopt ring-grooved rivet, in the outlet of induction tunnel installing hole is set, and at the interface of furnace end base installing hole is set.Both installing holes cooperatively interact, and specifically, the installing hole in the outlet of induction tunnel is corresponding with the position of mounting hole on the interface of furnace end base.When the interface of furnace end base was stretched in the outlet of induction tunnel, both installing holes coincide.Ring-grooved rivet is inserted the installing hole on the interface of installing hole in the outlet of induction tunnel and furnace end base, carry out the fixing of ring-grooved rivet, reach the purpose that connects induction tunnel and furnace end base is installed.
Easy to connect in order to install, can also screw thread be set at the inwall of the interface of furnace end base, at the screw thread that the outer wall of the outlet of induction tunnel arranges and the screw thread of the interface of described furnace end base matches, the outlet of induction tunnel is stretched into the interface of furnace end base after, rotation is tightened.The outlet spiral of the interface of described furnace end base and described induction tunnel is twisted and is connect.
Among other embodiment, can also projection be set at the interface of furnace end base, the groove that matches with described projection in the outlet setting of induction tunnel, after the outlet of induction tunnel being stretched into the interface of furnace end base, projection is embedded groove, the outlet engagement connection of the interface of described furnace end base and described induction tunnel.Perhaps, interface at furnace end base arranges groove, at the projection that the outlet setting of induction tunnel matches with described groove, the outlet of induction tunnel is stretched into the interface of furnace end base after, projection is embedded groove, the outlet engagement connection of the interface of described furnace end base and described induction tunnel.
Among other embodiment, the outlet of induction tunnel is connected with the joint weld of furnace end base, perhaps, adopts sealant tape to tie up the outlet of induction tunnel and the interface of furnace end base.Be further to strengthen sealing, can also in the interface of the outlet of induction tunnel and furnace end base, fill sealing strip.
The mode of the outlet of connection induction tunnel and the interface of furnace end base has many, in practical operation, can design as required.
Fig. 5 is the front view of the injector that provides of the embodiment of the invention, the as seen from Figure 5 detailed structure of the import 221 of the import 211 of the first induction tunnel and the second induction tunnel.Describe in detail below in conjunction with Fig. 4 and Fig. 5.
The import 221 that the import 211 of the first induction tunnel is equipped with the first air door 210, the second induction tunnels among Fig. 5 is equipped with the second air door 220.Pass into combustion gas and air from air door (abbreviation of the first air door and the second air door), combustion gas and air enter furnace end base 1 via induction tunnel, emerge from mixing chamber.
Combustion gas and the air flow velocity in induction tunnel has great impact on both mixing and on the air feed of gas-cooker.
For improving with induction tunnel combustion gas and air the flow velocity in induction tunnel, so that combustion gas and air can fully mix at induction tunnel, improve the stability to the gas-cooker air feed.The surface of the inwall of induction tunnel is manufactured smooth streamlined curved surface.Smooth streamlined curved surface can reduce the flow resistance of air-flow, improves the flow velocity of air-flow, improves the stability to the gas-cooker air feed.
It is raw material that the material of existing injector mostly adopts cast iron, and one-body molded casting forms.Induction tunnel mostly adopts the manufacturing of founding technique.Because the technical limitations of founding technique itself, cause the surface of inwall of induction tunnel very coarse, and be difficult to be improved by secondary operations such as polishings.This is so that after the combustion gas of injecting from the import of induction tunnel and air enter induction tunnel, because coarse surface causes air current flow to be obstructed, cause flow velocity to descend, thereby cause the unstable impact of air-flow velocity to the air feed of gas-cooker, reduce combustibility, affected the heat supply of gas-cooker.
In addition, the corrosion resistance of cast iron is relatively poor, long hot operation, the in addition environment of many water in kitchen heavy wool, the induction tunnel place is easy to oxidized corrosion, and this has not only reduced the service life of injector, and oxide etch is easy to stay the slit at induction tunnel, cause the situation of gas leakage, brought great potential safety hazard.
In view of the foregoing, the material of furnace end base can be exotic material, and heat resisting temperature is more than or equal to 700 degree; The material of described induction tunnel also can be exotic material, and heat resisting temperature is more than or equal to 500 degree.Such as adopting the materials such as stainless steel, copper, aluminium or pottery.Adopt exotic material can improve on the one hand non-oxidizability and the corrosion resistance of injector, prolong the service life of injector, adopt on the other hand exotic material to be generally and refine high metal or the macromolecular material of precision, this material also is convenient to the surface of the inwall of induction tunnel is manufactured smooth streamlined curved surface.
Injector is split-type design, can make things convenient on the one hand replacing and the maintenance of induction tunnel, and the heat resisting temperature of furnace end base and induction tunnel is different on the other hand, and the material of furnace end base and induction tunnel can adopt not identical exotic material.
In the present embodiment, furnace end base 1 has adopted different exotic materials with induction tunnel, and furnace end base 1 adopts cast iron, and induction tunnel adopts stainless steel.This not only can prevent the inflammable thawing under hot environment of furnace end base 1 and induction tunnel, and has preferably anti-oxidant and erosion-resisting performance.Because the requirement to the smoothness on the surface of the inwall of the requirement comparison induction tunnel of the smoothness on the surface of the inwall of furnace end base 1 is low, furnace end base 1 can adopt the cast iron manufacturing, can save the manufacturing cost of injector; Induction tunnel adopts the materials such as stainless steel, copper, aluminium or pottery, not only makes things convenient for manufacturing, the I﹠M of induction tunnel, and the light materials such as stainless steel, aluminium, can also alleviate the weight of injector.
In other embodiments, furnace end base 1 also can adopt identical exotic material with induction tunnel, such as all adopting the materials such as stainless steel, copper, aluminium or pottery.
Injector is mounted in and uses in the gas-cooker, when concrete the use, and on furnace end base install combustion device, mixed combustion gas and air are lighted by the mixing chamber fire hole that enters burner of emerging, for the user.
Technical scheme of the present invention has following beneficial effect at least:
Injector is carried out the split design, be divided into furnace end base and induction tunnel, be convenient to installation, dismounting and the maintenance of injector.The surface of the inwall of induction tunnel is streamlined curved surface, and this has reduced the resistance that air-flow flows in induction tunnel, improved flow velocity, thereby improved the fluency to the gas-cooker air feed, has strengthened combustibility, is conducive to the heat supply of gas-cooker.
Although the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made possible change and modification; therefore; every content that does not break away from technical solution of the present invention; to any simple modification, equivalent variations and modification that above embodiment does, all belong to the protection domain of technical solution of the present invention according to technical spirit of the present invention.
Claims (14)
1. the injector of a kitchen range top is characterized in that, comprising:
Furnace end base (1), described furnace end base (1) have mixing chamber (11,12) and interface (112,122), and described mixing chamber (11,12) and described interface (112,122) communicate;
Induction tunnel (21,22), described induction tunnel (21,22) has import (211,221) and the outlet (212,222), described induction tunnel (21,22) outlet (212,222) is connected with the interface (112,122) of described furnace end base (1).
2. injector as claimed in claim 1 is characterized in that, the surface of the inwall of described induction tunnel (21,22) is streamlined curved surface.
3. injector as claimed in claim 1 is characterized in that, the material of described furnace end base (1) is exotic material, and heat resisting temperature is more than or equal to 700 degree; The material of described induction tunnel (21,22) is exotic material, and heat resisting temperature is more than or equal to 500 degree.
4. injector as claimed in claim 1 is characterized in that, the material of the material of described furnace end base (1) and described induction tunnel (21,22) is different.
5. such as claim 3 or 4 described injectors, it is characterized in that, the material of described furnace end base (1) is cast iron, copper, stainless steel, pottery or aluminium, and the material of described induction tunnel (21,22) is stainless steel, copper, aluminium or pottery.
6. injector as claimed in claim 1 is characterized in that, also comprises the outlet (212,222) of fixing described induction tunnel (21,22) and the fixture (3) of the interface (112,122) of described furnace end base (1).
7. such as claim 1 or 6 described injectors, it is characterized in that, the diameter of the outlet (212,222) of described induction tunnel (21,22) is less than the diameter of the interface (112,122) of described furnace end base (1).
8. injector as claimed in claim 7, it is characterized in that, described fixture (3) is clip, the outlet (212,222) of described induction tunnel (21,22) has annular groove (213,223), the interface (112,122) of described furnace end base (1) has the strip gab (123 that matches with described annular groove (213,223), 113), the interface (112 of described furnace end base (1) is stretched in the outlet (212,222) of described induction tunnel (21,22), 122) and described annular groove (213,223) with described strip gab (123,113) alignment, described clip embeds described annular groove.
9. injector as claimed in claim 7, it is characterized in that, described fixture (3) is ring-grooved rivet, described induction tunnel (21,22) outlet (212,222) has the first installing hole, the interface (112 of described furnace end base (1), 122) has the second installing hole that matches with described the first installing hole, the interface (112 of described furnace end base (1) is stretched in the outlet (212,222) of described induction tunnel (21,22), 122) and described the first installing hole align with the second installing hole, described ring-grooved rivet inserts described the first installing hole and the second installing hole.
10. injector as claimed in claim 1 is characterized in that, the interface (112,122) of described furnace end base (1) is weldingly connected with the outlet (212,222) of described induction tunnel (21,22) and connects.
11. injector as claimed in claim 1, it is characterized in that, the interface (112,122) of described furnace end base (1) has screw thread, described induction tunnel (21,22) outlet (212,222) has the screw thread that the screw thread with the interface (112,122) of described furnace end base (1) matches, the interface (112 of described furnace end base (1), 122) connect with outlet (212, the 222) spiral of described induction tunnel (21,22) is stubborn.
12. injector as claimed in claim 1, it is characterized in that, the interface (112,122) of described furnace end base (1) has projection, described induction tunnel (21,22) outlet (212,222) has the groove that matches with described projection, the interface (112,122) of described furnace end base (1) and described induction tunnel (21,22) outlet (212,222) engagement connection.
13. injector as claimed in claim 1, it is characterized in that, described induction tunnel (21,22) comprise the first induction tunnel (21) and the second induction tunnel (22), the interface (112 of described furnace end base (1), 122) comprise first interface (112) and the second interface (122), described mixing chamber (11,12) comprise the first mixing chamber (11) and the second mixing chamber (12), described first interface (112) communicates with described the first mixing chamber (11), described the second interface (122) communicates with described the second mixing chamber (12), the outlet (212) of described the first induction tunnel (21) is connected with the first interface (112) of described furnace end base (1), and the outlet (222) of described the second induction tunnel (22) is connected with second interface (122) of described furnace end base (1).
14. gas-cooker that comprises the injector (100) of each described kitchen range top of claim 1-13.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102536503A CN102954471A (en) | 2011-08-27 | 2011-08-27 | Ejector and gas range |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102536503A CN102954471A (en) | 2011-08-27 | 2011-08-27 | Ejector and gas range |
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| CN102954471A true CN102954471A (en) | 2013-03-06 |
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| CN2011102536503A Pending CN102954471A (en) | 2011-08-27 | 2011-08-27 | Ejector and gas range |
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Cited By (5)
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| CN104101003A (en) * | 2013-04-15 | 2014-10-15 | 博西华电器（江苏）有限公司 | Gas stove and gas supply apparatus thereof |
| CN104728844A (en) * | 2015-02-11 | 2015-06-24 | 上海欧特电器有限公司 | Technological manufacturing method of atmospheric burner |
| CN105737153A (en) * | 2014-12-09 | 2016-07-06 | 博西华电器（江苏）有限公司 | Burner for gas stove and gas stove |
| CN109681868A (en) * | 2018-09-30 | 2019-04-26 | 浙江绍兴苏泊尔生活电器有限公司 | A kind of manufacturing method of burner, burner and gas-cooker |
| CN112254175A (en) * | 2020-10-22 | 2021-01-22 | 嵊州市固特金属科技有限公司 | Stainless steel furnace head structure |
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| CN104101003A (en) * | 2013-04-15 | 2014-10-15 | 博西华电器（江苏）有限公司 | Gas stove and gas supply apparatus thereof |
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| CN112254175A (en) * | 2020-10-22 | 2021-01-22 | 嵊州市固特金属科技有限公司 | Stainless steel furnace head structure |
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