... used in aluminum magnesium alloy extrusion die, die casting mould, especially suitable for large die mould. Or to m 1.chemical ... used in aluminum magnesium alloy extrusion die, die casting mould, especially suitable for large die mould. Or to make copper alloy ... extrusion die and die casting mould, forging mold for die forging hammer, etc.4.technique: forged/rolled5.packing situation: ...