... to distortion,2.long life,3.reduce labor costs.4square linear Marble Engraving MachineFeatures 1. Profiled steel welded lathe bed, ... ensures high accuracy, fast speed and strong power4. Imported square linear guide rail ensures high accuracy, maximum work load and long service ... .0KW Water Cooling Collect 3.175, 6, 12.7 XYZ Guide Rails Linear Square RailTransmission Rack Gear of X.Y axis , Ball ...