SSAW steel tube,sprial submerged arc welded pipes,DIN1626,DIN1 ... WT:1.5mm-60mm Description of Pipe:ProductionSSAW steel tube,sprial submerged arc welded pipes,DIN1626,DIN1.0132 Specification13 ... 48'')Wall Thickness1.5mm-60mmGrade10#,20#,45#,16Mn,Q235,304L ,316L,ST42,ST52,A106-a,A106-b,27SiMn,12Cr1MoV ... pipe7. hot-galvanized steel pipe SSAW steel tube,sprial submerged arc welded pipes,DIN1626,DIN1.0132