MMA welding machine (General) Model No.: ZX7-200(IGBT) Details:1.Equipped with imported IGBT of high power to output high welding current.2.The Tri-proof(water, dust and eroding proof) cooling system raised the reliability and duty cycle of the key components.3.The duty cycle is higher than 50% when the temperature of the operation surrounding is around 400C.Capable to operate outdoors.4.The ...