... diameter, such as pipe plug, automobile oil pipe, w Details:1. Main use: used in enlarge and reduce diameter, such as ... , water pipes, refrigerator pipes, etc. 2) Features: the structure of machine tool reasonable, firmly, work steady, low noise,little vibrancy 3 ... ) Size: SG-1-40, SG-1-50, SG-1-80, etc.Packing: Wooden box Pipe end processing Machine