... electrodes and shaping of epoxy board, hard alloy materials, marble, jade, optical glass, ceramic, ferrite, semiconductor, silicon carbide ... , refratory bricks etc.QT56 Series CNC Abrasive Wire Cutting Machine is controlled by digital process.It ... tightening spannerSpare parts:synchronous belt: 2moly wire: 2QT5620 cnc engraving machine cnc engraving machine QT5620