CN110393487A - 一种海绵清洗用具 - Google Patents
一种海绵清洗用具 Download PDFInfo
- Publication number
- CN110393487A CN110393487A CN201910796729.7A CN201910796729A CN110393487A CN 110393487 A CN110393487 A CN 110393487A CN 201910796729 A CN201910796729 A CN 201910796729A CN 110393487 A CN110393487 A CN 110393487A
- Authority
- CN
- China
- Prior art keywords
- lamella
- soft material
- sponge
- flexible foam
- material surface
- 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.)
- Pending
Links
- 241000446313 Lamella Species 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000006260 foam Substances 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 16
- 239000007779 soft material Substances 0.000 claims abstract description 16
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- 238000009991 scouring Methods 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 7
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000853 adhesive Substances 0.000 claims abstract description 6
- 230000001070 adhesive effect Effects 0.000 claims abstract description 6
- 229920000098 polyolefin Polymers 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000005187 foaming Methods 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 17
- 238000004140 cleaning Methods 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 206010000269 abscess Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/16—Cloths; Pads; Sponges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/08—Interconnection of layers by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2432/00—Cleaning articles, e.g. mops, wipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
本发明公开了一种海绵清洗用具，包括3~7层片层，片层通过胶粘剂粘连或火焰复合结合成块状体或卷成同心圆柱体。片层选用泡沫塑料或百洁布，相邻两层片层选用的材料不同或材料性能参数不同，且至少有一个表面片层为软质材料表面片层，软质材料表面片层选用孔径小于2mm的聚氨酯软质泡沫。同时至少一个软质材料表面片层厚度小于8mm。泡沫塑料包括聚氨酯软质泡沫、聚烯烃发泡材料或三聚氰胺发泡材料，材料性能参数包括密度、硬度、弹性模量、吸水性能、透气性能；且中间片层至少有一层的密度和/或硬度和/或弹性模量大于软质材料表面片层。片层长3~15cm、宽3~15cm、厚1~20mm。
Description
技术领域
本发明涉及一种海绵清洗用具，属于日常生活用品领域。
背景技术
海绵清洗用具用于日常生活的各种领域，特别是厨房的洗碗布等方面。
百洁布，属于不织布研磨产品，以特殊的纤维为基材，再接研磨矿砂而构成，具有独特的开放式网状立体结构。工业百洁布主要应用于金属、木器等材料表面的涂层处理，清洁、抛光、除锈、去毛刺等机械维修与清洁，高品质外观装饰线纹处理作业中。百洁布是一种被广泛应用的研磨用品，具有一定的切削作用，在用作家庭擦拭时，对一些较软的物体表面就不太合适，如塑料制品表面、油漆表面等。
传统天然擦洗用具具有比较好的强度，但是往往因为泡孔不够多，导致使用含有表面活性剂的洗涤剂时存在起泡性能不好，吸水性能不好，质地坚硬容易擦伤被洗涤物品等问题。
以合成洗碗布为代表的海绵清洗用具具有很好的起泡性能，但是因为结构简单，往往是两层结构，使得其不能有效的擦洗到角落，缝隙等不易清洗部位。同时，现有产品的强度不够，尤其是现有海绵清洁用具往往是软质表面层比较厚，而硬质层比较薄，使用过程不能满足要求。
发明内容
本发明的目的在于提供一种使用不同密度、硬度、泡孔结构等力学性能的海绵切片粘接在一起，总层数达到3层以上，既有很好的起泡性能和柔软性能又能提供足够强度保证擦洗到各种部位的一种海绵擦洗用具。
本发明通过以下技术方案实现：
一种海绵清洗用具，包括3~7层片层，所述片层通过胶粘剂粘连或火焰复合结合成块状体或卷成同心圆柱体；所述片层选用泡沫塑料或百洁布，相邻两层片层选用的材料不同或材料性能参数不同；所述泡沫塑料包括聚氨酯软质泡沫、聚烯烃发泡材料或三聚氰胺发泡材料，材料性能参数包括密度、硬度、弹性模量、吸水性能、透气性能。
所述片层包括中间片层和表面片层，所述表面片层至少有一个为软质材料表面片层，同时至少一个软质材料表面片层厚度小于8mm；所述中间片层至少有一个选用聚烯烃发泡材料、三聚氰胺发泡材料、百洁布或聚氨酯软质泡沫，且其密度和/或硬度和/或弹性模量大于所述软质材料表面片层。
上述技术方案中，所述片层长3~15cm、宽3~15cm、厚1~20mm。
上述技术方案中，所述软质材料表面片层选用孔径小于2mm的聚氨酯软质泡沫。
本发明具有以下优点及有益效果：使用不同性能的软泡切片结合在一起，使得由本发明所制的海绵清洗用具具有很好的洗涤剂起泡性能，柔软性能，同时具有很好的模量，强度，使得被清洗物品的角落，缝隙等不易擦洗部位也得到清洁，并且不会擦伤或者不易擦伤易磨损的器具表面。
附图说明
图1是本发明所涉及的其中一种实施方式的海绵清洗用具示意图。
图2是本发明所涉及的另一种实施方式的海绵清洗用具示意图。
具体实施方式
下面结合附图对本发明的具体实施方式及工作过程作进一步的说明。
本申请文件中的上、下、左和右等方位用语是基于附图所示的位置关系而建立的。附图不同，则相应的位置关系也有可能随之发生变化，故不能以此理解为对保护范围的限定。
本发明所述清洗用具，包括洗碗布、地板擦、厨具清洗用具等。
如图1和图2所示，一种海绵清洗用具，包括3~7层片层。位于外表面的作为表面片层，位于中间部位的作为中间片层。各片层通过胶粘剂粘连或火焰复合结合成块状体或卷成同心圆柱体。片层选用泡沫塑料或百洁布，且相邻两层片层选用的材料不同或材料性能参数不同。泡沫塑料包括聚氨酯软质泡沫、聚烯烃发泡材料或三聚氰胺发泡材料，百洁布指民用百洁布。材料性能参数包括密度、硬度、弹性模量、吸水性能、透气性能。
片层包括中间片层和表面片层。尤其重要的是，至少有一个表面片层为软质材料表面片层，软质材料表面片层选用孔径小于2mm的聚氨酯软质泡沫。孔径小于2mm的聚氨酯软质泡沫具有细腻的外表面，不容易擦伤物体表面。中间片层至少有一个选用聚烯烃发泡材料、三聚氰胺发泡材料、百洁布或聚氨酯软质泡沫，且其密度和/或硬度和/或弹性模量大于上述软质材料表面片层。这样就既有很好的起泡性能和柔软性能又能提供足够强度保证擦洗到各种部位。各片层通常长3~15cm、宽3~15cm、厚1~20mm，但至少一个软质材料表面片层厚度小于8mm。
实施例1：采用本发明所述的结构制作洗碗布。
如图1所示，海绵清洗用具包括5层聚氨酯软泡切片，通过水性胶粘剂粘合在一起。层1、3、5采用密度为35kg/m3的聚氨酯吸水海绵软泡，且其孔径为1~1.5mm。层2、4采用密度为80kg/m3的聚氨酯高回弹海绵。每一层的长宽高分别为12cm×7cm，0.5cm，总高度（厚度）为2.5cm。
实施例2：采用本发明的结构厨具清洗用具。
如图2所示：海绵清洗用具包括3层聚氨酯软泡海绵切片，通过水性胶粘剂粘合在一起，并且卷起后粘合成桶状。
层1、3采用密度为40kg/m3的聚氨酯吸水海绵软泡，且其孔径为0.5~1mm。层2采用密度为90kg/m3的开孔普通聚氨酯海绵。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (3)
1.一种海绵清洗用具，其特征在于，所述海绵清洗用具包括3~7层片层，所述片层通过胶粘剂粘连或火焰复合结合成块状体或卷成同心圆柱体；所述片层选用泡沫塑料或百洁布，相邻两层片层的材料不同或材料性能参数不同；所述泡沫塑料包括聚氨酯软质泡沫、聚烯烃发泡材料或三聚氰胺发泡材料，材料性能参数包括密度、硬度、弹性模量、吸水性能、透气性能；
所述片层包括中间片层和表面片层，所述表面片层至少有一个为软质材料表面片层，同时至少一个软质材料表面片层厚度小于8mm；所述中间片层至少有一个选用聚烯烃发泡材料、三聚氰胺发泡材料、百洁布或聚氨酯软质泡沫，且其密度和/或硬度和/或弹性模量大于所述软质材料表面片层。
2.根据权利要求1所述的一种海绵清洗用具，其特征在于，所述片层长3~15cm、宽3~15cm、厚1~20mm。
3.根据权利要求1所述的一种海绵清洗用具，其特征在于，所述软质材料表面片层选用孔径小于2mm的聚氨酯软质泡沫。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796729.7A CN110393487A (zh) | 2019-08-27 | 2019-08-27 | 一种海绵清洗用具 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796729.7A CN110393487A (zh) | 2019-08-27 | 2019-08-27 | 一种海绵清洗用具 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110393487A true CN110393487A (zh) | 2019-11-01 |
Family
ID=68329227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910796729.7A Pending CN110393487A (zh) | 2019-08-27 | 2019-08-27 | 一种海绵清洗用具 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110393487A (zh) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1294916B (de) * | 1962-07-09 | 1969-05-14 | Union Carbide Corp | Verfahren zur Herstellung von insbesondere als Polstermaterial geeigneten Schichtstoffen |
| NL8801468A (nl) * | 1988-06-07 | 1990-01-02 | Opstalan B V | Samengesteld plaatvormig materiaal alsmede de toepassing daarvan als isolatiemateriaal in bouwwerken. |
| US6513184B1 (en) * | 2000-06-28 | 2003-02-04 | S. C. Johnson & Son, Inc. | Particle entrapment system |
| DE202004005559U1 (de) * | 2004-04-07 | 2004-06-17 | Metzeler Schaum Gmbh | Reinigungsschwamm, insbesondere zum Reinigen von Küchengeschirr |
| US20060005338A1 (en) * | 2004-07-12 | 2006-01-12 | The Procter & Gamble Company | Cleaning implement comprising a layer of melamine foam |
| US20070074362A1 (en) * | 2004-11-17 | 2007-04-05 | Robert Michelson | Disposable liquid absorbing cleaning pad for a hand held cleaning implement having an elongated handle |
| CN201094605Y (zh) * | 2007-08-30 | 2008-08-06 | 科德宝家居用品(苏州)有限公司 | 百洁擦 |
| CN205126132U (zh) * | 2015-11-19 | 2016-04-06 | 苏州宏久航空防热材料科技有限公司 | 一种具有擦渍和吸水功能的复合层垫 |
| CN106313781A (zh) * | 2016-08-26 | 2017-01-11 | 明光市瑞洁日用品有限公司 | 一种加强型家用清洁布 |
| CN106388733A (zh) * | 2016-08-31 | 2017-02-15 | 南通爱华清洁用品有限公司 | 一种新型多用途百洁布 |
| CN107662377A (zh) * | 2017-10-20 | 2018-02-06 | 浙江德清森朗装饰材料有限公司 | 环保型装饰板材 |
| JP2019017948A (ja) * | 2017-07-21 | 2019-02-07 | 株式会社イノアックコーポレーション | 洗浄用スポンジ |
| CN211187090U (zh) * | 2019-08-27 | 2020-08-07 | 北京万博汇佳科贸有限公司 | 一种海绵清洗用具 |
-
2019
- 2019-08-27 CN CN201910796729.7A patent/CN110393487A/zh active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1294916B (de) * | 1962-07-09 | 1969-05-14 | Union Carbide Corp | Verfahren zur Herstellung von insbesondere als Polstermaterial geeigneten Schichtstoffen |
| NL8801468A (nl) * | 1988-06-07 | 1990-01-02 | Opstalan B V | Samengesteld plaatvormig materiaal alsmede de toepassing daarvan als isolatiemateriaal in bouwwerken. |
| US6513184B1 (en) * | 2000-06-28 | 2003-02-04 | S. C. Johnson & Son, Inc. | Particle entrapment system |
| DE202004005559U1 (de) * | 2004-04-07 | 2004-06-17 | Metzeler Schaum Gmbh | Reinigungsschwamm, insbesondere zum Reinigen von Küchengeschirr |
| US20060005338A1 (en) * | 2004-07-12 | 2006-01-12 | The Procter & Gamble Company | Cleaning implement comprising a layer of melamine foam |
| US20070074362A1 (en) * | 2004-11-17 | 2007-04-05 | Robert Michelson | Disposable liquid absorbing cleaning pad for a hand held cleaning implement having an elongated handle |
| CN201094605Y (zh) * | 2007-08-30 | 2008-08-06 | 科德宝家居用品(苏州)有限公司 | 百洁擦 |
| CN205126132U (zh) * | 2015-11-19 | 2016-04-06 | 苏州宏久航空防热材料科技有限公司 | 一种具有擦渍和吸水功能的复合层垫 |
| CN106313781A (zh) * | 2016-08-26 | 2017-01-11 | 明光市瑞洁日用品有限公司 | 一种加强型家用清洁布 |
| CN106388733A (zh) * | 2016-08-31 | 2017-02-15 | 南通爱华清洁用品有限公司 | 一种新型多用途百洁布 |
| JP2019017948A (ja) * | 2017-07-21 | 2019-02-07 | 株式会社イノアックコーポレーション | 洗浄用スポンジ |
| CN107662377A (zh) * | 2017-10-20 | 2018-02-06 | 浙江德清森朗装饰材料有限公司 | 环保型装饰板材 |
| CN211187090U (zh) * | 2019-08-27 | 2020-08-07 | 北京万博汇佳科贸有限公司 | 一种海绵清洗用具 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190015875A1 (en) | Scouring pad and method of scouring | |
| CN101351305B (zh) | 弹性磨料制品 | |
| US11324378B2 (en) | Foldable multi-purpose nonwoven hand pad and method of use | |
| US20010029967A1 (en) | Glass-ceramic surface cleaning and polishing system and processes of using the same | |
| US10986979B2 (en) | Scrub sponge with selectively accessible abrasive region | |
| JP2014510584A (ja) | 多用途洗浄用パッド | |
| CN202941618U (zh) | 刷子 | |
| US20070224409A1 (en) | Wipe Product, and Methods of Making | |
| CN211187090U (zh) | 一种海绵清洗用具 | |
| AU2011244685B2 (en) | Scouring body | |
| JP2021166823A (ja) | 洗浄用スポンジおよび洗浄用スポンジ用ポリウレタンフォーム | |
| CN110393487A (zh) | 一种海绵清洗用具 | |
| CN208435593U (zh) | 一种新型双面洗刷块 | |
| US20030192141A1 (en) | Scrub Sponge | |
| CN202408753U (zh) | 清洁用片体 | |
| JP2016077866A (ja) | たわしパッド | |
| US9700192B2 (en) | Abrasive sponge and process for production thereof | |
| CN2912503Y (zh) | 一种清洁抛光钢丝棉块 | |
| CN201538920U (zh) | 擦洗用复合无纺布 | |
| CN211565586U (zh) | 擦洗打磨巾 | |
| CN201094605Y (zh) | 百洁擦 | |
| KR200386471Y1 (ko) | 세제가 필요없는 고밀도 주방용 세척구 | |
| CN220713840U (zh) | 一种清洁用滚刷 | |
| JP3229473U (ja) | 粒状研磨材付きスポンジたわし | |
| CN209319588U (zh) | 一种使用寿命较长的钢丝棉 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |