SSAW steel tube,sprial submerged arc welded pipes,DIN1626,DIN1.0132 1.OD:13.7mm- ... :1.5mm-60mm Description of Pipe:ProductionSSAW steel tube,sprial submerged arc welded pipes,DIN1626,DIN1.0132 Specification13.7mm-1219.2mm ... steel pipe7. hot-galvanized steel pipe SSAW steel tube,sprial submerged arc welded pipes,DIN1626,DIN1.0132