... and wear-resisiting,good shield.3,independent power,widely used,high stabilization,capacity of resisting disturbance well4, the power source and ... of the lathe Milling machine NO 2 700*350Milling machine NO 3 800*400Milling machine NO 4 900*470Grinding machine 618 350*200 1U ... the linear scale is short circuit 5.The safe pipe fusing or not.1.Check the power line and connect it ...