... specially used for positioning, assembling and welding for steel pipe & flange, branch pipe & branch flange, ModelZH1013ZH1313ZH1613FunctionsPositioning & WeldingSize ... on the vice-working table (mm)8001200Rotary angle on the vice-working table (mm)±90 ... specially used for positioning ,assembling &welding between steelpipe and flange,branch pipe and branch flange. Pipe Flange Welding Machine