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