cnc engraving machine QT5620 conductor,semiconductor cut: graphite,epoxy board,carbide,stone,etc. TM ISO9001:2008 Main Technical DataTypeQT5620Worktable Tavel(mm)200× ... alloy materials, marble, jade, optical glass, ceramic, ferrite, semiconductor, silicon carbide, refratory bricks etc.QT56 Series CNC Abrasive Wire Cutting Machine is controlled ...