... , marble, granite etc) CNC Engraver Process hard materials High precision High speed Low price Hard Materials(stone, marble, granite etc) CNC ... face to face, the long time use precision is high.Hard Materials(stone, marble, granite etc) CNC Engraver Configuration:1. ... model:StepperApplied area: The machine mainly used in the engraving of hard materials such as solid wood, marble, granite, glass, stone ...