... X52 AND SO ON Brand namesprial steel pipeTypeSeamless steel pipe,Line pipe ,Casing pipe ,Oil pipe,Spiral steel pipe,Welded steel pipe ERW steel pipe .SpecificationsOD:2"-100"WT:2-50mmMaterialGRB ... /DayCertificatesIso APIPaymentT/T L/CBrand nameXYTTypeSeamless steel pipe,Line pipe ,Casing pipe ,Oil pipe,Spiral steel pipe,Welded steel pipe ERW steel pipe .SpecificationsOD:2'-100'WT:2-50mmMaterialGRB ...