4 in1 mig welder gas gasless inverter 220v 200a mig arc lift tig welding machine with these features, this welder will protect you and your welder from any long-lasting damage. Please let us know immediately if a package is damaged upon arrival. Postflow time 0.5-1.5S. HITBOX MIG Welder 180A IGBT Inverter Flux Core Wire Gasless/Gas 4 in 1 Welding Machine.