Brass or brass alloys
Bronze or bronze alloys
Copper or copper alloys
Aluminium or aluminium alloys
.
By the weight of copper head
By over all size of the head
By geometry of the head
By the length of the head
Lump, powder, paste or liquid
Solid, liquid, powder
Gas, solid, paste
Semi solid, gas, liquid
182 Degree Centigrade
183 Degree Centigrade
184 Degree Centigrade
185 Degree Centigrade
Zinc chloride
Phosphoric acid
Ammonium chloride
Hydro chloric acid