... benefit and perfect service, Country of Origin .Experienced Staff, Quality assurance Product DescriptionOur product name: C sheet, C shape purlin, C purlin. C shape purlin ... , Z shape purlin, H shape beam are widely used in factory Buildings, high buildings, large-span bridges, gymnasiums, and ... *70/75*20C300*80*20and so on ! galvanized steel of C purlin and section steel sheet