Nickel acid and Boric acid

Copper oxide and Carbonate

Zinc and Zinc chloride

Hydrochloric acid

Dyestuff not soluble

In sufficient dyestuff

Dyestuff not dipping

High dyestuff

Coating

Bleaching

Dipping

Brushing

Electronic industry

Automobile industry

Aerospace industry

Shipping industry

Chromic acid

Sulphuric acid

Nitric acid

Hydro chloric acid