High Quality Customized Metal Cup Coaster Die struck or die cast coasters ... casting, injectionMaterial: zinc alloyEffect: 2-D, semi-3DFinish: soft enamel, resin, synthetic enamelPlating: gold, nickel, copper, brass, matte finish and antique ... are highly welcomedWe have got rich OEM orders since 1984 High Quality Customized Metal Cup Coaster