... in enlarge and reduce diameter, such as pipe plug, automobile oil pipe, w Details:1. Main use: used ... such as pipe plug, automobile oilpipe, 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