... HIWIN Linear Rail for X,Y,Z axis 4.Germany ballscrew hot-sale stone cnc engraving machine Features1.The lathe bed and ... steel water sink waterproof device , and effectively protect the cleaness of the machine transmission part . easy maintenance5. High-power brushless ... waste materials phenomenon8. Applicable materials: granite, the crystal, marble, stone, all kinds of man-made stone, glass and copper ...