Material
Brass, Iron, Zinc alloy, ect.
Process
Hard enamel, Soft enamel, 3D, Silk screen print, ect.
Plating
Gold, Silver, Nickel, Black nickel, Dyed black, ect.
Attachment
Rubber clutch, Butterfly clutch, Magnet, ect.
Packing
Poly bag, OPP bag, PVC bag, ect.