... / lead / zinc / brass / copper / aluminium,etc metals. 2. Like non-ferrous metals and aluminium alloy melting. 3. The sic graphite crucible ... and other aggregate and binding materials, through the processing of grinding, kneading, second grinding, moulded forming, baking ... and other aggregate and binding materials, through the processing of grinding, kneading, second grinding, isotropic forming, baking ...