... SGS,BV, etc Surface:Hot galvanized, Cold galvanized Key word: G.I. Pipe Specification TypeG.I. Pipe Pipe Size1/2"—48 ... metallurgy, etc.Surface Hot galvanized, Cold galvanized, Painted black, varnish paint, anti rust oil, 3PE, or as per customers’ requirementsPackageSteel ... price and attentive services3.Reliable partnerProductionTestingManufacturing equipmentsPacking&Transportation Company G.I. Pipe