... 0-12.0 ZX7-400amp heavy duty welding machine A.Feature and Application 1.Advanced Inverter technology and V-MOSFET design.2.PWM ... of pressure, over load and etc, safty and reliable.5.Supper compact and portable, best for outdoor movable working and high altitude working. 6 ... OEM Serive offered Color ,logo ,and others could make as your specific requirements F.Two stage quality control 1,Machine ...