cnc engraving machine QT5620 conductor,semiconductor cut: graphite,epoxy board,carbide,stone,etc. TM ISO9001:2008 Main Technical ... widely used for cutting graphite electrodes and shaping of epoxy board, hard alloy materials, marble, jade, optical glass, ceramic, ... , semiconductor, silicon carbide, refratory bricks etc.QT56 Series CNC Abrasive Wire Cutting Machine is controlled by digital process.It ...