... high precision glass engrave multifunction machine CE,FDA cnc engraving machine RJ6090Features: 1.Excellent design and well-chosen electric accessories ... and waterproof design ensure stable transmission. Application:3D/2D engraving,Embossment,Line engraving ,Cutting,Edge inversing,Drilling on Natural stones,Granites, ... , Ball Screw of Z axisRack Gear of X.Y axis, Ball Screw of Z axisRack Gear of X.Y ...