... such as board,bamboo,cardboard,marble,rubber, plexiglass,acrylic,glass and.. Features1. YINGHE Series Laser Engraving and Cutting machine all integrates optics ... be used to process nonmetal material,such as board,bamboo,cardboard,marble,rubber, plexiglass,acrylic,glass and crystal,leather cloth. ... and so on. Rotery clamp,widen the appliance of the machine. The diameter of clamp fit parts is 20mm to ...