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

Metal etching solution , Chemical etching fluid , Etching liquid , Circuit board etching solution , Steel etching liquid

Metal etching solution , Chemical etching fluid , Etching liquid , Circuit board etching solution , Steel etching liquid

First, Product number: Q/YS.304 (Yi Shun brand)

Second,Product performance:

This product is suitable for chemical etching of steel, die steel, stainless steel, titanium alloy, magnesium alloy, copper alloy, cast aluminum, and metal plate pattern decoration.Etching time is short, not blocked, not burning, light.

Third, Product indexes:

1. Dark yellow transparent liquid with slight odour

2. PH less than 5 (acidity)

3. Proportion: greater than 1.0

Fourth, Product usage:

1.Soak the printed metal parts in the metal etching solution (liquid), constantly shake the workpiece or brush the metal surface with a soft brush.It can be etched successfully after about 20min- 30min.

2.After etching, remove the workpiece, and can enter other processes, such as: polishing, film removal, etc

3.After a certain amount of time, the etching solution should be replenished to restore the effect.

Fifth, precautions:

1. This product is suitable for acid sensitive film.

2. Unable to etch steel and iron components simultaneously.

Other processing：Chemical nickel plating liquid、Chemical silver plating liquid (copper substrate)、Metal polishing Agent、Iron and steel surface treatment agent series、Steel rapidly copper plating liquid