1,design by ourself 2,easy installation 3, safety, rich color 4,metal ... building 70-165 semi-circular (5/6/7 inches) drain pipe roll forming machineMy company can customize according to user requirements ... factory production.H. equipment noise is low and high efficiency. 2, equipment composition: Put rack: a set Molding host: a ... 6000kg 70-165 semi-circular (5/6/7 inches) drain pipe roll forming machine