... ,A106,A53,A335,A333,DIN1629,DIN2448,NFA49,GOST8731,JISG3454GradeGR.B,X42,X56,P11, P22,ST37,ST45.8,ST52,S235JR ... be 3PE or FBE or Galv. CoatedInspection & Certification1Certification: ISO, API, ASTM, DIN etc2 Mill Test Certificate: EN10204/3.1B3Third party ... 000 Square Meters Steel pipe: Seamlesssteel pipe, Erw/Lsaw welded steel pipe, Ssaw/Spiral welded steel pipe, Hot galvanized steel pipe , 3PE/2PE,3PP ...