... .High frequency,energy conservation 3.durable,reliable 4.Type:cutter CUT-100 IGBT Inverter plasma mild steel cutting machine Model: CUT40/ CUT50/ ... is very convenient, quick, economical 3.PWM modulation technology,high inverter frequency,portable and energy saving.4.Simple operation, small incision ... in seven days,we replace the new one for you. CUT-100 IGBT Inverter plasma mild steel cutting machine