... 17175 Certificate:ISO 9001, SGS, BV, etc. a53 grade b galvanized seamless pipe 1.Specification Type Seamless PipePipe Size1/2 ... ,SCH100,SCH120,SCH140,SCH160,XXSLengthFixed: 3.0 , 5.8 , 5.85 , 5.9 , 6.0 ,11.8 , 12.0m. Unfixed ... ,JIS G3456,JIS G3457,JIS G3461MaterialA53B, A106B, API 5L B,X42,X46,X52,X60, X65, X70,X80,Q235ST37.0, ... bag as per customers request6. Company a53 grade b galvanized seamless pipe