Pipe Beveling Machines. Pipe cold beveling machines by GBC can be used in workshops as well as on site and on all kind of material (carbon steel, stainless steel, duplex, inconel, etc.). Our range of pipe beveling machines starts from ½" (12,4 mm) up to 40″ (1016 mm) and can be used to produce all the weld preparations (V-prep, J-prep and ...Web