... OEM Ability:1) Machines:Die casting machine for alloy products, Stamping Machine for brass products2) Surface Coating:Polishing,Electroplate,Enamel, ... : 12Line(7.5mm) to 64Line(35mm) buttons available8) Color Table:Nickel,Sliver,Gold,Brass,Copper,Gun metal, Pewter, Black nickel ... high-class products and perfect after-sale service, thank you! Material: ECO 3# Zinc Alloy Technical: Lead-free Nickel free ...