... .design: OEM 3.sample cost: free for current design 4.test: SGS custom metal police badge with OEM design1.Material: zinc alloy,also ... enamel,imitation hard enamel,printing,photo etching etc6.Plating: silver with gold,also can be nickel,bronze,antique silver,antique bronze ... of process:all kinds of attachment all kinds of backside:For more info,please contact me at:Attn: Lucine ZhuTel: 86 ...