... and Features: 1.Steel-welded construction, vibration to eliminate stress with high strength and good rigidity 2.Advanced technology 2-1 ... ,protective grating controlled by electrical system. 2-10,support device with ball to reduce the damage of the board. 2-11,oil ... .CNC systems: Imported Holland DELEM or Domestic cnc systems ,along with ball screw and servo motor for backgauge,higher accuracy will be ...