Good Quality Galvanized 60 MM 70 MM Octagonal Tube Roll Forming Machine Customized by LOTOSFORMING.in fact, We offer the most economically priced Octagonal Pipe Roll Forming Line and octagon Pipe Roll Forming Machine. The octagonal steel shaft is on the left or right in shutter box bearing bearings and is the changing female for the roller shutter hangings. Steel pipe Shaft Use For Roller Shutter. You Can Find Complete Details about Steel Octagonal Shaft Roll Forming Machine.