... /200/300 Rated capacity: 80/150/200/300 Mid-frequency inverter spot projection welding machineCharacteristicHigh quality, high efficiency of the welding ... %, three-phase input load balance. The impact of the power grid is greatly reduced of users.Output current is DC, current ... +3.5 aviation, aerospace, automotive, compressors, Save electri medium frequency inverter spot (projection) welding machine