C shape steel machine are widely used in factory Buildings, high buildings, large-span bridges, gymnasiums, and portable Houses C Purline roll Forming MachineWorking FlowDecoiler → guiding unit → punching holes unit → front shear → roll forming unit → finished product supporter/ (stacking unit)parametersNoItemDescription1Raw materialMaterial typeGalvanized/ Gal aluminized /prepainted/ cold/hot ...