Engineering Materials
Cyaniding is the process of

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

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Engineering Materials
Dow metal contains

90% aluminium and 90% copper
90% magnesium and 9% aluminium with some copper
94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe
92.5% aluminium and, 4% copper, 2% nickel and 1.5% Mg

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