... A53/A36,EN39/EN10219,API 5L 6)Certificate:ISO9001-2008,EN10210,API,Raw material cert,Mill cert,Reap on site inspection report ... to customers' requirementsCertificate ISO9001-2008,EN10210,API,Raw material cert,Mill cert,Reap on site inspection report,SGS,BVStandardJIS G3444ASTM A53 ... quantity of order:20MT4)Delivery period :15 to 30 Days High Quality Galvanized steel pipe/tube