... simp KHBL8-80 Orbit tube/tube plate welding machine with Dragon Gate frame 1,KHBL8-80 Orbit tube/tube plate welding machine ... with Dragon Gate frame.2,Used for welding of flush, protruding, recessed tubes or ... to water cooling.6, Capacity 300A max.Under argon with direct current, with or without pulsing.7,8 m long hose assembly ...