... 3.CE , ISO9001:2000 4.Pipe bending double head hydraulic pipe bender SW-38A-90° Double-head Pipe Bending Machine SW-38-90°Technological parameters : ... control, operation of the machine very stable. 2. Manual, automatic, semi-circle, full circle and many other features to select ... cyclic operation, high efficiency. 6. Space inside and outside corner-type head can be turned 90 degrees as the processing, ...