日韩欧美三级片在线,久久99精品国产.久久久久,2020国产成人综合网,99国产精品久久久久久久久久久,中国免费高清在线观看_久久国产精品免费无码二区_日本一级黄片视频_日国产av自拍_妈妈用嘴巴帮我消火

201#Stainless Steel blackening Agent,Stainless Steel Black dye agent,Protective metal chemical coloring agent

201#Stainless Steel blackening Agent,Stainless Steel Black dye agent,Protective metal chemical coloring agent

First, Product Code: Q / YS.334(Yi Shun brand)

Second, Product use:

This product is suitable for 201 #, 202 #, 207 # and other 2 # at the beginning of the blackening stainless steel treatment,after blackening oxide film shiny black, and black film with a solid combination of strong, long time to maintain a bright black Without any change, can greatly improve the "2" stainless steel corrosion resistance, as well as excellent decorative effect, easy to operate.

Third, Product Specifications:

This product is solid powder.

As the proportion of more than 1.0

Fourth, How to use the product: 

Weighing by weight, taking this product 2 times add 1 time of tap water, put in stainless steel or ceramic container for heating When boiling (about 135-140 ℃ °), you can put Bright and clean 2 series stainless steel immersed in blackening agent, about 30-40 minutes, remove the stainless steel for cleaning. Washing and drying, that is dark and shiny black uniform stainless steel.

Fifth, Precautions:

Stainless steel before blackening if there is oxide and oil will have to first remove oxide and oil.

Other processing：Stainless Steel blackening agent at ambient temperature、Aluminum Antique Agent、Cast Aluminum Cleaning Agent、Environmental protection chemical plating  nickel liquid (super-concentrated)、Gold colorant of aluminum