毛片在线观看AV_久久精品国产亚洲αV麻豆网站_在厨房被c到高潮_亚洲国产男人的天堂你懂的_国产极品粉嫩馒头一线天_最近更新中文字幕手机版_午夜视频等优质视频资源_亚州性夜夜射在线观看_高清无码人妻精品内射视频_2021中文字幕无码免费

Product list
Contact us

Tax Registration Number: 91440101552358350G

Bank:BANK OF CHINA GUANGZHOU ZENGCHENG ZHONGXIN SUB-BR

Account :705569418477

E-mail: gdyshg@163.com

Tel: 15118868698 020-87471488

Business address:The new town of Zengcheng District of Guangzhou Ctiy in Cunjing Fung pui road 30

Copper blackening agent at ambient temperature,Metal dyed Black,Brass Blackening

Product Name:Copper blackening agent at ambient temperature,Metal dyed Black,Brass Blackening

Price:

Copper blackening agent at ambient temperature,Metal dyed Black,Brass Blackening



Copper blackening agent at ambient temperature,Metal dyed Black,Brass Blackening



First, the product code: Q / YS.125 (Yi Shun brand)


Second, product performance:

This product is widely used in a variety of copper alloys (bronze, brass, copper, etc.) at room temperature black, antique and anti-corrosion treatment, the operation without any smell, the agent can also be used for iron and zinc alloy blackening and imitation antique.


Third, product index:

① PH value: 2 ~ 3

② Appearance: light blue translucent pearlescent liquid, odorless


Fourth, the use of instructions:

① Product used at room temperature stock solution

② The clean copper immersed in the black liquor for about 1-2 minutes, you can make the copper black

③ After blackening the workpiece to be washed and air-dried


Fifth, note:

① Product corrosion, careful not to contact with the skin.

② Products should be packed with plastic or stainless steel, do not use iron equipment.


Other processingChemical Plating Liquid Train、Stainless steel chemical thicker liquid copper  plating、The copper surface is chemically coated with black metal film、Copper rust remover and degreasing agent、Copper colored chocolate