... for customers to provide satisfactory products. Seamless steel pipe Seamless steel pipe for liquid transport :Applicable to transport liquid, gas ... Eddy. current flaw detector), Hydrostatic Test. Seamless steel pipe: ASTM A 53 specification for black steel seamless pipes ASTM ... A106,ANSI,ISO9001,DIN,EN,JIS. 1. Specification: SM400A, SM400B, SM490A, SM490B, SM520B, SM520C 2. Standard: JIS 3. Product: ...