... : Zinc-alloy , Iron , Brass, Copper, Stainless steel.etc.2, Technique: Die casting + Paint+Gold Plating ( Silkscreen, Offset printing , Engraved,Embossed,Soft ... ! Like AI, PSD,CDR,PDF etc. ProcessLapel pin optional: Stamping, Die-cast,Injection, PhotoetchingMaterialLapel pin Optional: tinPlating:Anti-gold,silver,brass, gold ...