... ,ASTM A53/A36,EN39/EN10219,API 5L 6)Certificate:ISO9001-2008,EN10210,API,Raw material cert,Mill cert, ... , according to customers' requirementsCertificate ISO9001-2008,EN10210,API,Raw material cert,Mill cert,Reap on site ... inner and outer stab clean,bevelled,threading,with coupling and plastic caps protected,packing in plastic cloths ... Delivery period :15 to 30 Days High Quality Galvanized steel pipe/tube