Size:1/2'' - 48'' Standard: API 5L, ASTM A106/A53, JIS G3456/3461 , DIN1626/1629/17175 Certificate:ISO 9001, SGS, BV, ... etc. JIS G3454 Seamless Steel Pipe For Oil 1.Specification Type Seamless ... 5L,ASME B36.10M-1996DIN1626,DIN1629,DIN17175JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461MaterialA53B, A106B, API 5L B,X42,X46,X52 ...