... 3 high speed gear wheel 4 Water cooling Gweike metal copper aluminum Desk CNC ROUTER WK2030Supply with CE certificate,1) X,Y ... and some other material . Mould Area : Metal mould eg :engraving copper , aluminium and iron, and nonmetal mould eg scagliola ,sandstone , plastic ... area : art and craft area , embossment and engraving photo. metal copper aluminum Desk CNC ROUTER WK2030