... 2.CCC,CE certificate 3.stable welding current 4.duty cycle100% 100% duty cycle IGBT inverter welding machine ♥Use: light manufacturing, maintenance, ... 4.2KWFrequency:50/60HZNo-load Voltage:58VCurrent Arrange:10-200ADuty Cycle:100%Efficiency:85%Class of Insulation:FApplied welding Rod: ... .Standard accessories:Packing details:Factory Picture:Part Workshop: 100% duty cycle IGBT inverter welding machine