... , T-branch pipe, four-branch Pipe. 1.It's a welder used in workshop, which especially to make elbow,T-branch ... all models as 90-250mm, 110-315mm.* Technological Parameters Parameters 250 315 Rang of clamp 90-250mm 110-315mm Elbow,T ... want to know more about this machine ,please contact us.. 250/315 Multangular Heat-Fusion Weld Machine