CN108050376A - A kind of solid ammonia storage tank - Google Patents
A kind of solid ammonia storage tank Download PDFInfo
- Publication number
- CN108050376A CN108050376A CN201711295783.0A CN201711295783A CN108050376A CN 108050376 A CN108050376 A CN 108050376A CN 201711295783 A CN201711295783 A CN 201711295783A CN 108050376 A CN108050376 A CN 108050376A
- Authority
- CN
- China
- Prior art keywords
- ammonia storage
- storage tank
- partition
- solid ammonia
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 144
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 72
- 239000007787 solid Substances 0.000 title claims abstract description 62
- 238000005192 partition Methods 0.000 claims abstract description 56
- 208000002925 dental caries Diseases 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 11
- 229910001631 strontium chloride Inorganic materials 0.000 abstract description 6
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 229910052712 strontium Inorganic materials 0.000 abstract description 4
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000000638 solvent extraction Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 239000011232 storage material Substances 0.000 description 3
- BUPUEZMOSVAXJH-UHFFFAOYSA-L [Sr+2].[Cl-].N.[Cl-] Chemical compound [Sr+2].[Cl-].N.[Cl-] BUPUEZMOSVAXJH-UHFFFAOYSA-L 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
- F17C2203/013—Reinforcing means in the vessel, e.g. columns
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0107—Single phase
- F17C2223/0138—Single phase solid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of solid ammonia storage tanks, including tank body, it is arranged in the tank body for the tank body to be divided into the partition plate (5) of several small cavitys, there is venthole on the partition plate (5), be provided on the venthole can pass the gas through and stop solid particle by filter screen.Solid ammonia storage tank provided by the present invention, a point chamber will be carried out using partition plate inside solid ammonia storage tank, big storage cavity is divided into multiple small cavitys, make the strontium chloride dusty material in solid ammonia storage tank that chamber be divided to take up, bulk density reduction is expanded after filling ammonia afterchlorinate strontium absorption ammonia, reduce and reduce the blastic deformation to solid ammonia storage tank shell, reduce the deflection of heating tube, tube sheet and solid ammonia storage tank shell.
Description
Technical field
The present invention relates to ammonia storage device technical field, more particularly to a kind of solid ammonia storage tank.
Background technology
Solid ammonia after-treatment system (Solid Selective Catalytic Reduction, abbreviation SSCR system) is
By the use of inorganic salt powder as carrier, adsorb and be translated into solid-state after ammonia and be stored in tank body, heated using waste heat from tail gas
After discharge ammonia, participate directly in the reaction of SCR catalyst.Inorganic salts are for storing the carrier material of ammonia, such as strontium chloride.
In the prior art, cylindrical tank ammonia storage tank inner cavity integrally penetrates through, the whole intracavitary saving of solid ammonia storage tank circular tank
Strontium chloride powder or particle.Since the whole chamber volume of solid ammonia storage tank is larger, is expanded during internal strontium chloride absorption ammonia, make it
Eight ammonia strontium chloride bulk densities are larger, can generate immense pressure to the shell 3 of solid ammonia storage tank, tank body is caused to deform and storing
Heating tube 4 is deformed with tube sheet 1 in chamber 2.
In conclusion the problems such as solid ammonia storage material generates larger stress to solid ammonia storage tank how is efficiently solved,
It is current those skilled in the art's urgent problem.
The content of the invention
The object of the present invention is to provide a kind of solid ammonia storage tank, which efficiently solves solid ammonia storage material
Adsorb the problems such as ammonia expansion generates larger stress to solid ammonia storage tank.
In order to solve the above technical problems, the present invention provides following technical solution：
A kind of solid ammonia storage tank, including tank body, be arranged in the tank body be used to the tank body being divided into several it is small
The partition plate of cavity has venthole on the partition plate, and solid can be passed the gas through and stop by being provided on the venthole
Grain by filter screen.
Preferably, the volume size of the small cavity is identical.
Preferably, the tank body is cylindrical tank, and the partition plate includes first vertical with the axis of the cylindrical tank of plate face
Partition plate.
Preferably, the quantity of the first partition is polylith, the spacing of the tube sheet of end first partition and the tank body with
And the spacing all same between the adjacent first partition.
Preferably, the partition plate further includes second partition of the axis of the cylindrical tank in its plate face.
Preferably, the quantity of the second partition is polylith, and the angle between the second partition is identical.
Solid ammonia storage tank provided by the present invention is storage cavity including tank body, partition plate, tank interior, and partition plate is arranged at tank
In body, for tank body to be divided into several small cavitys.On partition plate there is venthole, filter screen is provided on venthole, filter
Net can pass the gas through and stop that solid particle passes through.
Solid ammonia storage tank provided by the present invention will carry out a point chamber, big storing inside solid ammonia storage tank using partition plate
Chamber is divided into multiple small cavitys, makes the strontium chloride dusty material in solid ammonia storage tank that chamber be divided to take up, and fills ammonia afterchlorinate strontium storage ammonia material
Expect that bulk density is smaller, reduce and reduce the blastic deformation to solid ammonia storage tank shell, reduce heating tube, tube sheet and solid storage ammonia
The deflection of tank shell.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of operation principle schematic diagram of typical solid ammonia storage tank in the prior art；
The first storage cavity partitioning scheme in the solid ammonia storage tank that Fig. 2 is provided for a kind of specific embodiment in the present invention
Schematic diagram；
Fig. 3 is the left view of Fig. 2；
Second of storage cavity partitioning scheme in the solid ammonia storage tank that Fig. 4 is provided for a kind of specific embodiment in the present invention
Schematic diagram；
Fig. 5 is the left view of Fig. 4；
The third storage cavity partitioning scheme in the solid ammonia storage tank that Fig. 6 is provided for a kind of specific embodiment in the present invention
Schematic diagram；
Fig. 7 is the left view of Fig. 6；
4th kind of storage cavity partitioning scheme in the solid ammonia storage tank that Fig. 8 is provided for a kind of specific embodiment in the present invention
Schematic diagram.
It is marked in attached drawing as follows：
1- tube sheets, 2- storage cavitys, 3- shells, 4- heating tubes, 5- partition plates, 51- first partitions, 52- second partitions.
Specific embodiment
The core of the present invention is to provide a kind of solid ammonia storage tank, which efficiently solves solid ammonia storage material
Adsorb the problems such as ammonia expansion generates larger stress to solid ammonia storage tank.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
It please refers to Fig.1 to Fig. 8, Fig. 1 is a kind of operation principle schematic diagram of typical solid ammonia storage tank in the prior art；Figure
The first storage cavity partitioning scheme schematic diagram in the 2 solid ammonia storage tanks provided for a kind of specific embodiment in the present invention；Fig. 3
For the left view of Fig. 2；Second of storage cavity point in the solid ammonia storage tank that Fig. 4 is provided for a kind of specific embodiment in the present invention
Cut schematic diagram；Fig. 5 is the left view of Fig. 4；The solid ammonia storage tank that Fig. 6 is provided for a kind of specific embodiment in the present invention
In the third storage cavity partitioning scheme schematic diagram；Fig. 7 is the left view of Fig. 6；Fig. 8 is a kind of specific embodiment institute in the present invention
4th kind of storage cavity partitioning scheme schematic diagram in the solid ammonia storage tank of offer.
In a kind of specific embodiment, solid ammonia storage tank provided by the present invention, including tank body, partition plate 5, tank interior
For storage cavity 2, partition plate 5 is arranged in tank body, for tank body to be divided into several small storage cavitys 2.There is ventilation on partition plate 5
Hole is provided with filter screen on venthole, and filter screen can pass the gas through and stop that solid particle passes through.
Solid ammonia storage tank provided by the present invention will carry out a point chamber, big storing inside solid ammonia storage tank using partition plate 5
Chamber 2 is divided into multiple small cavitys, makes the strontium chloride powder in solid ammonia storage tank or granular materials that chamber be divided to take up, and fills ammonia afterchlorinate strontium
It is smaller to adsorb eight ammonia strontium chloride bulk densities of ammonia formation, reduce and reduces the blastic deformation to solid ammonia storage tank shell 3, subtracts
The deflection of small heating tube 4, tube sheet 1 and solid ammonia storage tank shell 3 especially reduces the heating tube 4 in tank base after entrucking
Crimp.
Above-mentioned solid ammonia storage tank is only a kind of preferred embodiment, is specifically not limited thereto, on this basis can be according to reality
It needs to make with targetedly adjusting, so as to obtain different embodiments, the volume size of small cavity is identical, and solid is stored up
Ammonia tank uniformly divides chamber, fills ammonia afterchlorinate strontium ammonia-storing material absorption ammonia even inflation, 3 deflection of heating tube 4, tube sheet 1 and shell
Reduce.Certainly, the identical simply a kind of preferred embodiment of the volume size of small cavity, be not it is unique, can not also phase
Together, the volume size of specific each small cavity is unrestricted, can be depending on practical situations, the protection all in the present invention
In the range of.
On the basis of above-mentioned specific embodiment, those skilled in the art can be according to the difference of specific occasion, to solid
Body ammonia storage tank carries out several changes, and tank body is cylindrical tank, simple in structure, easy to process.Partition plate 5 include first partition 51, first
The plate face of partition plate 51 is vertical with the axis of cylindrical tank, carries out axial segmentation, be divided into several sections it is equal and high with cylindrical tank diameter
Smaller cylindrical section is spent, that is, cylindrical storage cavity 2 separates along crosspiece face, ensures that the diameter of single small cavity is identical, segmentation
Mode is simple and practicable.
Obviously, under the guidance of this thought, those skilled in the art can be according to the difference of specific occasion to above-mentioned
Specific embodiment carries out several changes, and the quantity of first partition 51 is polylith, end first partition 51 and the tube sheet of tank body
Spacing all same between spacing and adjacent first partition 51, even partition are multiple small cavitys, what each small cavity was subject to
Impact is smaller, and blastic deformation is smaller, and ensures single small housing width, and partitioning scheme is simple and practicable, and even partition is more square
Just, more accurately.
It is important to note that solid ammonia storage tank provided by the present invention is not intended to be limited to such situation, partition plate 5 is also
Including second partition 52, the second partition 52 of the axis of cylindrical tank in its plate face, the center line and cylindrical tank of second partition 52
Axis overlap, rice font segmentation is carried out on the cross section of cylindrical tank, is divided into the small cavitys of several fan shaped cross sections.It is small
The height of cavity can be identical with the height of cylindrical tank, there was only second partition 52 in cylindrical tank at this time, without first partition 51；
The height of small cavity and the height of cylindrical tank can differ, on the basis of being divided using first partition 51, by the
Two partition plates 52 are further divided, that is, circular cylindrical solid ammonia storage tank is set first partition 51 along cross-sectional direction, real
The division of existing storage cavity 2；Cross second partition 52 is placed in each single roundlet cylindricality storage cavity 2, by small cavity into
One step divides, and reduces the bearing capacity of each several part, reduces the deformation of tank body shell 3, heating tube 4 and tube sheet 1, especially after entrucking
The crimp of heating tube 4 in tank base.
Solid ammonia storage tank provided by the present invention, immovable in other components, the quantity of second partition 52 is equal
For polylith, the angle between second partition 52 is identical, and the storage cavity 2 of cylindrical tank uniformly divides chamber, and the bearing capacity for making each several part is uniform,
Reduce the deformation of tank body shell 3, heating tube 4 and tube sheet 1, the extruding change of the heating tube 4 in tank base especially after entrucking
Shape.
In the description of the present invention, it is necessary to illustrate, the orientation or position relationship of the instructions such as term is axial are based on attached
Orientation or position relationship shown in figure are for only for ease of the description present invention and simplify description rather than instruction or imply signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention
Limitation.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (6)
1. a kind of solid ammonia storage tank, which is characterized in that including tank body, be arranged in the tank body tank body being divided into
The partition plate (5) of several small cavitys has venthole on the partition plate (5), is provided on the venthole and can lead to gas
Cross and stop solid particle by filter screen.
2. solid ammonia storage tank according to claim 1, which is characterized in that the volume size of the small cavity is identical.
3. solid ammonia storage tank according to claim 2, which is characterized in that the tank body is cylindrical tank, partition plate (5) bag
The rubbing board face first partition (51) vertical with the axis of the cylindrical tank.
4. solid ammonia storage tank according to claim 3, which is characterized in that the quantity of the first partition (51) is polylith,
Spacing between the spacing of the tube sheet of end first partition (51) and the tank body and the adjacent first partition (51) is homogeneous
Together.
5. according to claim 2-4 any one of them solid ammonia storage tanks, which is characterized in that the partition plate (5) further includes described
Second partition (52) of the axis of cylindrical tank in its plate face.
6. solid ammonia storage tank according to claim 5, which is characterized in that the quantity of the second partition (52) is more
Block, the angle between the second partition (52) are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295783.0A CN108050376A (en) | 2017-12-08 | 2017-12-08 | A kind of solid ammonia storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711295783.0A CN108050376A (en) | 2017-12-08 | 2017-12-08 | A kind of solid ammonia storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108050376A true CN108050376A (en) | 2018-05-18 |
Family
ID=62123351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711295783.0A Withdrawn CN108050376A (en) | 2017-12-08 | 2017-12-08 | A kind of solid ammonia storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050376A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090103723A (en) * | 2008-03-27 | 2009-10-01 | 이비덴 가부시키가이샤 | Honeycomb structure |
| US20090301600A1 (en) * | 2008-06-06 | 2009-12-10 | Sebastian Kaefer | Method for loading a gas accumulator |
| CN103857624A (en) * | 2011-09-30 | 2014-06-11 | 英瑞杰汽车***研究公司 | Tank for storing ammonia by sorption |
| CN105074317A (en) * | 2012-12-21 | 2015-11-18 | 英瑞杰汽车***研究公司 | Tank for storing a gas stored by sorption comprising shock-absorbing means |
| CN205859599U (en) * | 2016-04-01 | 2017-01-04 | 吉林省众鑫汽车装备有限公司 | Efficiently ammonia storage tank |
| CN206338583U (en) * | 2016-12-15 | 2017-07-18 | 吉林省众鑫汽车装备有限公司 | A kind of efficient ammonia storage tank |
| CN206786335U (en) * | 2017-05-03 | 2017-12-22 | 吉林省众鑫汽车装备有限公司 | A kind of ammonia storage tank |
| CN107504365A (en) * | 2017-08-31 | 2017-12-22 | 吉林省开运模具有限公司 | Solid-state ammonia ammonia storage tank |
| CN207865019U (en) * | 2017-12-08 | 2018-09-14 | 长春一汽四环腾达油脂化工有限公司 | A kind of solid ammonia storage tank |
-
2017
- 2017-12-08 CN CN201711295783.0A patent/CN108050376A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090103723A (en) * | 2008-03-27 | 2009-10-01 | 이비덴 가부시키가이샤 | Honeycomb structure |
| US20090301600A1 (en) * | 2008-06-06 | 2009-12-10 | Sebastian Kaefer | Method for loading a gas accumulator |
| CN103857624A (en) * | 2011-09-30 | 2014-06-11 | 英瑞杰汽车***研究公司 | Tank for storing ammonia by sorption |
| CN105074317A (en) * | 2012-12-21 | 2015-11-18 | 英瑞杰汽车***研究公司 | Tank for storing a gas stored by sorption comprising shock-absorbing means |
| CN205859599U (en) * | 2016-04-01 | 2017-01-04 | 吉林省众鑫汽车装备有限公司 | Efficiently ammonia storage tank |
| CN206338583U (en) * | 2016-12-15 | 2017-07-18 | 吉林省众鑫汽车装备有限公司 | A kind of efficient ammonia storage tank |
| CN206786335U (en) * | 2017-05-03 | 2017-12-22 | 吉林省众鑫汽车装备有限公司 | A kind of ammonia storage tank |
| CN107504365A (en) * | 2017-08-31 | 2017-12-22 | 吉林省开运模具有限公司 | Solid-state ammonia ammonia storage tank |
| CN207865019U (en) * | 2017-12-08 | 2018-09-14 | 长春一汽四环腾达油脂化工有限公司 | A kind of solid ammonia storage tank |
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Effective date of registration: 20200909 Address after: 136000 No. 1, Pioneer Street, Gongzhuling Economic Development Zone, Siping City, Jilin Province Applicant after: JILIN ZHONGXIN AUTOMOTIVE EQUIPMENT Co.,Ltd. Address before: 130000 No. 1864 Dongfeng South Street, Jilin, Changchun Applicant before: CHANGCHUN FAW SIHUAN TENGDA GREASE CHEMICAL Co.,Ltd. |
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Effective date of registration: 20210708 Address after: Room 5128, Huada Tianshi innovation and service center, intersection of Xinxiu street and Dashun Road, Kuancheng District, Changchun City, Jilin Province Applicant after: Kelin Lantai Environmental Technology (Changchun) Co.,Ltd. Address before: 136000 No.1 Chuangye street, Gongzhuling Economic Development Zone, Siping City, Jilin Province Applicant before: JILIN ZHONGXIN AUTOMOTIVE EQUIPMENT Co.,Ltd. |
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Application publication date: 20180518 |
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