... Pipe Welding Machine(GTAW/TIG) Spec & Model: PAAWM-1HC/03C/06C/08C Application:Applicable Industry: petrochemical, Boiler, refrigeration ... , medical, voyage, pressure vessel, shipping, food machine, atomic power, etc.Scope of applicable: O.D. φ16mm~φ230mm, and pipe-pipe, pipe-elbow, pipe-flange, pipe ... -cool Technical Description Standard Type Diameter of pipe:Φ16-40,Φ36-90,Φ70-160,,Φ140- ...