... . Color: CMYK printing6. Process: stamping, also can be photo etch, injection, die-casting, die-struck, cut-outs 7. Finish: soft enamel +Ap ... , also can be hard enamel, sand blasting, soft enamel, imitation enamel 8. Plating: nickel plating, also ... , phone straps, watch wrist,USB cover and so on . custom metal mouse badge/pin badge