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

Copper rust remover and degreasing agent， High efficiency rust removal agent ，Metal rust removal brightening agent ，Metal degreasing agent and rust remover， Potent two in one degreasing  rust remover liquid of copper

Copper rust remover and degreasing agent， High efficiency rust removal agent ，Metal rust removal brightening agent ，Metal degreasing agent and rust remover， Potent two in one degreasing  rust remover liquid of copper

First, the product code: Q / YS.119 (Yi Shun brand)

Second, the scope of products:

This product is widely used in all kinds of copper alloys (brass, copper, beryllium copper, phosphor bronze, etc.) degreasing rust and black skin, in order to restore the new character of copper.

Third, the product advantages:

This product is clean and odorless, easy to clean, can wash away stubborn oxide scale and stubborn dirt.

Fourth, product index:

① colorless, transparent and odorless

② proportion:> 1.0

③ PH value: acidic

Fifth, the operation flow:

① the product and water to 1: 5 ratio after use, with hot water better.

② copper parts soaked in copper degreasing rust cleaning fluid, constantly turning the workpiece about 2 to 4 minutes later.

③ after washing without chromate passivation and drying.

Six, matters needing attention:

① the entire operation process to wear latex gloves.

② this product has degreasing rust function, but there is no polishing leveling effect.

Other processing：Environmental degreer and rust remover、Stainless Steel Polishing Agentas、Brass Green Chemical polishing Agent、Electroless plating of real gold on copper surface、Strong oil stain removal agent、Environmental non-cyanide gold removal liquid、Brass Green Chemical polishing Agent