1.Tube-tube sheet automatic tig welding machine 2.20 year experience 3.High quality assurance 4 ... steel, alloy steel, stainless steel, aluminum, aluminum alloy, copper and copper alloy, titanium alloy, etcProduct function1, Suitable for various ... assembly method2,Helicopter compact structure, small volume. Using elastic and positioning mandrel, three supporting frame, can make the circumferential, ...