... speed, for the similar product of 2 3 times. metal engraving machine 3030Cutter diameter3.175 mm (6 mm)Processing size300 x 300 ... kinds of materials processing, surface fast widely used in signs nameplate, the breast piece, seals, and building models, artwork, decorations, ... you have special requirements, of course, we can customize the machine according to your requirements to suit your needs. If any ...