... Galvanized or naked as customers' need;5)Product Type: Square pipe, Rectangular tubes, ERW tubes, Welded steel pipe, ... on.Product nameGalvanized round PipeSpecification10*10-300*300mmMaterial of Square PipeQ195, Q215, SGCC,DX51DStandardsASTM-A53.BS1387-85, ... Gi Square Pipe3m-12mProcessing techniquecoupling, necking, punching and so on.Usage industryPetrol, gas, water pipe,construction,chimney pot. ...