... 2011 New Arrival Metal PinMaterial & process:Zinc alloy,brass,iron,copper(diecasting,stampingSize45mm,55mm,60mm,70mm diameter ... silver,anti-silver,nickel,anti-nickel,black nickel,brass,anti-brass,copper,anti-copper,dyed black,double colour. ... Laser engrave. Plating Nickel, Gold, Silver, Bass, Antique Silver, Antique gold, Antique brass, Antique copper, Black, Spray black, Copper, Nickel sandblast, ...