Engineering Materials
White metal contains

Silver and chromium
Alloy of tin, lead and cadmium
88% copper and 10% tin and rest zinc
63 to 67% nickel and 30% copper

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Engineering Materials
Cyaniding is the process of

Obtaining cyanide salts
Adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
Reacting steel surface with cyanide salts
Dipping steel in cyanide bath

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