CN106824718A - A kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial and its production technology - Google Patents
A kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial and its production technology Download PDFInfo
- Publication number
- CN106824718A CN106824718A CN201611242104.9A CN201611242104A CN106824718A CN 106824718 A CN106824718 A CN 106824718A CN 201611242104 A CN201611242104 A CN 201611242104A CN 106824718 A CN106824718 A CN 106824718A
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- CN
- China
- Prior art keywords
- coating
- guard
- corrosion
- antibacterial
- resistant
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/06—Applying particulate materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/582—No clear coat specified all layers being cured or baked together
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2506/00—Halogenated polymers
- B05D2506/20—Chlorinated polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2506/00—Halogenated polymers
- B05D2506/20—Chlorinated polymers
- B05D2506/25—PVC
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention provides a kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial and its production technology, and the guard includes：Guard body；It is coated on antimicrobial coating, high-temperaure coating, antistatic coating and the flame retardant coating of the guard body outer surface successively from the inside to the outside；It is coated on corrosion-resistant finishes, salt-fog preventing coating, moisture barrier coatings and the automatic cleaning coating of the guard body internal surface successively from the inside to the outside.The design that the guard passes through laminated coating, possesses preferable antibacterial, fire-retardant, corrosion-resistant, dust-proof and automatical cleaning ability, applied widely, low production cost and production process environmental protection, it is good in economic efficiency.
Description
Technical field
The invention belongs to hardware production field, in particular it relates to a kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial
And its production technology.
Background technology
Guard is that one kind is fixed on before various electrical equipment or metal, protects the metal iron wire that people does not come to harm.
Guard can be divided into：1st, barbecue rack guard；2nd, basket；3rd, net hood for kitchen ventilator；4th, deep fryer basket guard；5th, industrial wind
Fan guard；6th, expanded metal lath guard；7th, other.
Guard is applied to the guards such as various electric fans, warmer, stove；Electric oven, refrigerator rack；Deep fryer, kitchen and bath,
The baskets such as fruit；Water dispenser heat radiation net sheet；Iron wire, stainless steel wire handicraft product.
Existing guard on the market, its material is mostly stainless steel or irony, the corrosion-resistant effect under different use environments
Fruit is general, will so influence its service life and aesthetic measure.And guard performance is single, it is limited its scope of application.
For guard, the current country is primarily present following patent document：
Chinese patent Authorization Notice No.：CN205002313U, discloses a kind of durable type guard on air purifier, bag
Include body, moisture-proof Defend salt fog layer, anti-impacting layer and antistatic backing；The body is arc concavity body, its length direction and width
Direction is curved, and the two ends of body are provided with draw-in groove, and groove is provided with the middle part of body, intensive on body to be evenly equipped with multiple
Mesh.The medial surface of body is covered in by using moisture-proof Defend salt fog layer so that product has stronger moisture-proof and Defend salt fog special
Property, beneficial to the service life of extension product, while by being provided with anti-impacting layer so that product can keep out certain external force punching
Hit, be difficult to be damaged, by setting antistatic backing, it is to avoid product surface is easily covered with dust, it is ensured that air-out quality, this product is installed
When periphery be contained in plastic casing, smooth-going is balanced, and gas is exported from mesh, and outlet mode is in diffused, to the flow direction of air
And environment plays certain purification.However, the guard that the patent is provided, it is only applicable to air purifier, although with moisture-proof
Defend salt fog layer, anti-impacting layer and antistatic backing three-decker, but it is still difficult to avoid that bacteria breed, influences air net on the contrary
Change quality.
The content of the invention
To solve above-mentioned problem, it is an object of the invention to provide a kind of corrosion-resistant anti-electrostatic fire retardant type net of antibacterial
Cover and its production technology, the design that the guard passes through laminated coating, possess preferable antibacterial, it is fire-retardant, corrosion-resistant, dust-proof and from
Cleaning capacity, it is applied widely, low production cost and production process environmental protection, it is good in economic efficiency.
To reach above-mentioned purpose, the technical scheme is that：
A kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial, the guard includes：Guard body；It is coated on institute successively from the inside to the outside
State antimicrobial coating, high-temperaure coating, antistatic coating and the flame retardant coating of guard body outer surface；It is coated on successively from the inside to the outside
The corrosion-resistant finishes of the guard body internal surface, salt-fog preventing coating, moisture barrier coatings and automatic cleaning coating.
Further, the antimicrobial coating is nano-Ag particles antimicrobial coating.
Separately, the high-temperaure coating is polyvinyl chloride high-temperaure coating.
Separately have, the antistatic coating is tetraethyl orthosilicate coating.
Again, the flame retardant coating is polyurethane flame-proof coating.
Further, the corrosion-resistant finishes is epoxy novolac coating.
And, the salt-fog preventing coating is chlorinated polypropylene coating.
Separately, the moisture barrier coatings are polyurethane moisture barrier coatings.
Again, the automatic cleaning coating is nano-TiO2Coating.
Meanwhile, the present invention also provides a kind of production technology of the corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial, including following step
Suddenly：
1) pre-treatment
Guard body is taken, oil removing, rust cleaning, phosphatization, Passivation Treatment is carried out, the phosphatization temperature is 60 ~ 70 DEG C, phosphating time 15 ~
20min；
2) spray
2.1) by step 1) in guard body feeding electrostatic sprayer after treatment, shower nozzle correspondence guard body outer surface hides
Cover net cover body outer surface, by the resistance of nano-Ag particles powder, polyvinyl chloride high temperature resistant powder, tetraethyl orthosilicate powder and polyurethane
Combustion powder is equably sprayed on guard body outer surface successively from the inside to the outside, and sequentially forming antibacterial in guard body outer surface applies
Layer, high-temperaure coating, antistatic coating and flame retardant coating；
2.2) overturning step 2.1) guard body after the completion of electrostatic spraying, guard body internal surface correspondence shower nozzle is covered outer
Surface, by pnenolic aldehyde epoxy powder, chlorinated polypropylene powder, polyurethane protection against the tide powder and nano-TiO2Powder from the inside to the outside according to
It is secondary to be equably sprayed on guard body internal surface, sequentially form corrosion-resistant finishes, salt-fog preventing coating, anti-in guard body internal surface
Damp coating and automatic cleaning coating；
Every layer of 30 ~ 40 DEG C of spraying temperature of coating, 50 ~ 60Kv of spray voltage, spray angle is 30 ~ 90 °, sprinkler pressure 0.3 ~
0.5MPa；Step 2) in place at room temperature 1 ~ 2 hour after the completion of every layer of coating electrostatic spraying；
3) solidify
By step 2) the guard body feeding baking oven after the completion of electrostatic spraying is heating and curing, and the temperature being heating and curing is 160 ~ 180
DEG C, the time being heating and curing is 10 ~ 20min, is cooled to room temperature；
4) finishing polishing
Grinding process is carried out to the guard body surface after curing process, makes surfacing, complete the antibacterial high temperature resistant corrosion resistant
Lose the production of guard.
The beneficial effects of the present invention are：
The guard is coated on the antimicrobial coating of the guard body outer surface, high-temperaure coating, antistatic successively from the inside to the outside
Coating and flame retardant coating；It is coated on the corrosion-resistant finishes of the guard body internal surface, salt-fog preventing coating, anti-successively from the inside to the outside
Damp coating and automatic cleaning coating, by the design of laminated coating, possess preferable antibacterial, fire-retardant, corrosion-resistant, dust-proof and automatically cleaning
Ability, it is applied widely, low production cost and production process environmental protection, it is good in economic efficiency.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial provided by the present invention.
Specific embodiment
Below by specific embodiment, the present invention is described further, but embodiment is not intended to limit protection of the invention
Scope.
A kind of reference picture 1, corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial of the present invention, the guard includes：Guard
Body 1；It is coated on antimicrobial coating 2, the high-temperaure coating 3, antistatic coating of the outer surface of guard body 1 successively from the inside to the outside
4 and flame retardant coating 5；Be coated on successively from the inside to the outside the corrosion-resistant finishes 6 of the inner surface of guard body 1, salt-fog preventing coating 7,
Moisture barrier coatings 8 and automatic cleaning coating 9.
Further, the antimicrobial coating 2 is nano-Ag particles antimicrobial coating.
Separately, the high-temperaure coating 3 is polyvinyl chloride high-temperaure coating.
Separately have, the antistatic coating 4 is tetraethyl orthosilicate coating.
Again, the flame retardant coating 5 is polyurethane flame-proof coating.
Further, the corrosion-resistant finishes 6 is epoxy novolac coating.
And, the salt-fog preventing coating 7 is chlorinated polypropylene coating.
Separately, the moisture barrier coatings 8 are polyurethane moisture barrier coatings.
Again, the automatic cleaning coating 9 is nano-TiO2Coating.
Meanwhile, the present invention also provides a kind of production technology of the corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial, including following step
Suddenly：
1) pre-treatment
Guard body 1 is taken, oil removing, rust cleaning, phosphatization, Passivation Treatment is carried out, the phosphatization temperature is 60 ~ 70 DEG C, phosphating time 15 ~
20min；
2) spray
2.1) by step 1) in the feeding electrostatic sprayer of guard body 1 after treatment, by the outer surface of shower nozzle correspondence guard body 1,
The outer surface of covering net cover body 1, by nano-Ag particles powder, polyvinyl chloride high temperature resistant powder, tetraethyl orthosilicate powder and poly- ammonia
The fire-retardant powder of ester is equably sprayed on the outer surface of guard body 1 successively from the inside to the outside, is sequentially formed in the outer surface of guard body 1 anti-
Bacterium coating 2, high-temperaure coating 3, antistatic coating 4 and flame retardant coating 5；
2.2) overturning step 2.1) guard body 1 after the completion of electrostatic spraying, the inner surface of guard body 1 correspondence shower nozzle is covered
Outer surface, by pnenolic aldehyde epoxy powder, chlorinated polypropylene powder, polyurethane protection against the tide powder and nano-TiO2Powder is from the inside to the outside
The inner surface of guard body 1 is equably sprayed on successively, and sequentially forming corrosion-resistant finishes 6, Defend salt fog in the inner surface of guard body 1 applies
Layer 7, moisture barrier coatings 8 and automatic cleaning coating 9；
Every layer of 30 ~ 40 DEG C of spraying temperature of coating, 50 ~ 60Kv of spray voltage, spray angle is 30 ~ 90 °, sprinkler pressure 0.3 ~
0.5MPa；Step 2) in place at room temperature 1 ~ 2 hour after the completion of every layer of coating electrostatic spraying；
3) solidify
By step 2) the feeding baking oven of guard body 1 after the completion of electrostatic spraying is heating and curing, and the temperature being heating and curing is 160 ~ 180
DEG C, the time being heating and curing is 10 ~ 20min, is cooled to room temperature；
4) finishing polishing
Grinding process is carried out to the surface of guard body 1 after curing process, makes surfacing, complete the antibacterial high temperature resistant corrosion resistant
Lose the production of guard.
The corrosion-resistant anti-electrostatic fire retardant type guard of a kind of antibacterial provided by the present invention and its production technology, from the inside to the outside successively
It is coated on antimicrobial coating, high-temperaure coating, antistatic coating and the flame retardant coating of the guard body outer surface；From the inside to the outside according to
The secondary corrosion-resistant finishes for being coated on the guard body internal surface, salt-fog preventing coating, moisture barrier coatings and automatic cleaning coating, by many
The design of layer coating, possesses preferable antibacterial, fire-retardant, corrosion-resistant, dust-proof and automatical cleaning ability, applied widely, production cost
It is low and production process is environmentally friendly, it is good in economic efficiency.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the technology of invention
Scheme is modified or equivalent, and without deviating from the scope of technical solution of the present invention, it all should cover in power of the invention
In sharp claimed range.
Claims (10)
1. the corrosion-resistant anti-electrostatic fire retardant type guard of a kind of antibacterial, it is characterised in that the guard includes：
Guard body；
It is coated on antimicrobial coating, high-temperaure coating, antistatic coating and the resistance of the guard body outer surface successively from the inside to the outside
Combustion coating；
Be coated on successively from the inside to the outside the corrosion-resistant finishes of the guard body internal surface, salt-fog preventing coating, moisture barrier coatings and from
Cleaning coating.
2. the corrosion-resistant anti-electrostatic fire retardant type guard of a kind of antibacterial according to claim 1, it is characterised in that the antibacterial is applied
Layer is nano-Ag particles antimicrobial coating.
3. a kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial according to claim 1, it is characterised in that the high temperature resistant
Coating is polyvinyl chloride high-temperaure coating.
4. the corrosion-resistant anti-electrostatic fire retardant type guard of a kind of antibacterial according to claim 1, it is characterised in that described antistatic
Coating is tetraethyl orthosilicate coating.
5. a kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial according to claim 1, it is characterised in that the fire-retardant painting
Layer is polyurethane flame-proof coating.
6. the corrosion-resistant anti-electrostatic fire retardant type guard of a kind of antibacterial according to claim 1, it is characterised in that described corrosion-resistant
Coating is epoxy novolac coating.
7. a kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial according to claim 1, it is characterised in that the Defend salt fog
Coating is chlorinated polypropylene coating.
8. the corrosion-resistant anti-electrostatic fire retardant type guard of a kind of antibacterial according to claim 1, it is characterised in that described moistureproof to apply
Layer is polyurethane moisture barrier coatings.
9. a kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial according to claim 1, it is characterised in that the automatically cleaning
Coating is nano-TiO2Coating.
10. the production technology of a kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial as any one of claim 1 ~ 9, its
It is characterised by, comprises the following steps：
1) pre-treatment
Guard body is taken, oil removing, rust cleaning, phosphatization, Passivation Treatment is carried out, the phosphatization temperature is 60 ~ 70 DEG C, phosphating time 15 ~
20min；
2) spray
2.1) by step 1) in guard body feeding electrostatic sprayer after treatment, shower nozzle correspondence guard body outer surface hides
Cover net cover body outer surface, by the resistance of nano-Ag particles powder, polyvinyl chloride high temperature resistant powder, tetraethyl orthosilicate powder and polyurethane
Combustion powder is equably sprayed on guard body outer surface successively from the inside to the outside, and sequentially forming antibacterial in guard body outer surface applies
Layer, high-temperaure coating, antistatic coating and flame retardant coating；
2.2) overturning step 2.1) guard body after the completion of electrostatic spraying, guard body internal surface correspondence shower nozzle is covered outer
Surface, by pnenolic aldehyde epoxy powder, chlorinated polypropylene powder, polyurethane protection against the tide powder and nano-TiO2Powder from the inside to the outside according to
It is secondary to be equably sprayed on guard body internal surface, sequentially form corrosion-resistant finishes, salt-fog preventing coating, anti-in guard body internal surface
Damp coating and automatic cleaning coating；
Every layer of 30 ~ 40 DEG C of spraying temperature of coating, 50 ~ 60Kv of spray voltage, spray angle is 30 ~ 90 °, sprinkler pressure 0.3 ~
0.5MPa；Step 2) in place at room temperature 1 ~ 2 hour after the completion of every layer of coating electrostatic spraying；
3) solidify
By step 2) the guard body feeding baking oven after the completion of electrostatic spraying is heating and curing, and the temperature being heating and curing is 160 ~ 180
DEG C, the time being heating and curing is 10 ~ 20min, is cooled to room temperature；
4) finishing polishing
Grinding process is carried out to the guard body surface after curing process, makes surfacing, complete the antibacterial high temperature resistant corrosion resistant
Lose the production of guard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242104.9A CN106824718A (en) | 2016-12-29 | 2016-12-29 | A kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611242104.9A CN106824718A (en) | 2016-12-29 | 2016-12-29 | A kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106824718A true CN106824718A (en) | 2017-06-13 |
Family
ID=59114729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611242104.9A Pending CN106824718A (en) | 2016-12-29 | 2016-12-29 | A kind of corrosion-resistant anti-electrostatic fire retardant type guard of antibacterial and its production technology |
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| Country | Link |
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| CN (1) | CN106824718A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335287A (en) * | 2017-06-30 | 2017-11-10 | 太仓市格雷得五金有限公司 | A kind of corrosion-resistant automatically cleaning filter bag of water process environment-friendly antibacterial |
| CN107349683A (en) * | 2017-06-30 | 2017-11-17 | 太仓市格雷得五金有限公司 | A kind of fire-retardant corrosion-resistant automatically cleaning filter bag of water process environment-friendly antibacterial |
| CN107349681A (en) * | 2017-06-30 | 2017-11-17 | 太仓市格雷得五金有限公司 | A kind of water process environment-friendly antibacterial fire-resistant antistatic filter cloth |
| CN107362616A (en) * | 2017-06-30 | 2017-11-21 | 太仓市格雷得五金有限公司 | A kind of fire-retardant corrosion-resistant automatically cleaning filter cloth of water process environment-friendly antibacterial |
| CN111058022A (en) * | 2019-11-28 | 2020-04-24 | 广州市敬业金属实业有限公司 | Anticorrosion and antibacterial treatment method for iron handrails |
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| CN205716089U (en) * | 2016-06-25 | 2016-11-23 | 吴江耀迪纺织品有限公司 | A kind of mildew-proof flame retarded spinning air duct of antistatic antibiotic |
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| CN101920243A (en) * | 2009-06-12 | 2010-12-22 | 江门市新会区天健钢家具制品厂有限公司 | Method for manufacturing imitating silver on surface of steel product |
| CN202099367U (en) * | 2011-05-10 | 2012-01-04 | 钱远强 | Metal anti-microbial coating being easy to clean |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107335287A (en) * | 2017-06-30 | 2017-11-10 | 太仓市格雷得五金有限公司 | A kind of corrosion-resistant automatically cleaning filter bag of water process environment-friendly antibacterial |
| CN107349683A (en) * | 2017-06-30 | 2017-11-17 | 太仓市格雷得五金有限公司 | A kind of fire-retardant corrosion-resistant automatically cleaning filter bag of water process environment-friendly antibacterial |
| CN107349681A (en) * | 2017-06-30 | 2017-11-17 | 太仓市格雷得五金有限公司 | A kind of water process environment-friendly antibacterial fire-resistant antistatic filter cloth |
| CN107362616A (en) * | 2017-06-30 | 2017-11-21 | 太仓市格雷得五金有限公司 | A kind of fire-retardant corrosion-resistant automatically cleaning filter cloth of water process environment-friendly antibacterial |
| CN111058022A (en) * | 2019-11-28 | 2020-04-24 | 广州市敬业金属实业有限公司 | Anticorrosion and antibacterial treatment method for iron handrails |
| CN111058022B (en) * | 2019-11-28 | 2021-09-28 | 广州市敬业金属实业有限公司 | Anticorrosion and antibacterial treatment method for iron handrails |
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Application publication date: 20170613 |