Size:1/2'' - 48'' Standard: API 5L, ASTM A106/A53, JIS G3456/3461 , DIN1626/1629/17175 Certificate:ISO 9001, SGS, BV, ... ,SCH60,XS,SCH80,SCH100,SCH120,SCH140,SCH160,XXSLengthFixed: 3.0 , 5.8 , 5.85 , 5.9 , 6.0 ,11.8 , 12.0m. Unfixed ... : 5-12mStandardASTM A53,A106,API 5L,ASME B36.10M-1996DIN1626,DIN1629,DIN17175JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461MaterialA53B, A106B ...