... duty, Stable operation,High precision, Long lifetime. 2.The whole machine is made of welding steel, high stiffness, the back table ... two-way tool cooling system increase the lifetime of tools.Stone cnc router machines (JX-1313S) ModelJX-1313SX,Y Axis working area ... duty, Stable operation,High precision, Long lifetime. 2.The whole machine is made of welding steel, high stiffness, the back table ...