YINGHE laser equi used to process nonmetal material,such as board,bamboo,cardboard,marble,rubber, plexiglass,acrylic,glass and.. Features1. YINGHE Series Laser Engraving ... coolingWorking powerAC220V/50HZ±5%,Graphic formatPLT, AI, DXF, BMPOptionalRotary clamp,red light contraposition system, cooling system,electric rise and fall platform ...