Seamless steel pipe 1.Standard:ASTM A106,A53,API 5L etc 2.Size: ... " to 100" 3.Mill Test Certificate:EN10204/3.1B Seamless steel pipe,seamless steel tube,seamless pipe1) Standard: ASTM A106, A53, API 5L ... ) The pipes also can be 3PE or FBE or Galv. Coated.Inspection & Certification 1) Certification: ISO, API, ASTM, DIN etc. 2 ... 3) Third party inspection: SGS, BV, Lloyds etc. Carbon seamless Steel Pipe