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