... , ADC14, Aluminium alloy, steel alloy, 1045 steel, sus304, 45cr, 40cr, 38crsi, Magnesium alloy, etc.Surface treatmentNickel plating, zinc coating, chrome plating ... alloy, brass and bronze alloy), 1045 steel, sus304, 45cr, 40cr, 38crsi 2.All kinds of surface treatments: polishing, zinc plating, nickel ...