... Process hard materialsB.High precisionC.High speedD.Low price Hard Materials(stone, marble, granite etc) CNC Engraver Features:A.Germany ... to face, the long time use precision is high. Hard Materials(stone, marble, granite etc) CNC Engraver Configuration: 1. ... flash disk DSP control system, Wentai software, type3 software Hard Materials(stone, marble, granite etc) CNC Engraver Technical Parameters:1 ...