... competitive price. Specfication of seamless carbon steel pipe: ASTM A106 GR. B Size of Seamless Steel Pipe: From 4" to 28", ... from 114.3mm to 711. 2 mm Schedule of Seamless Steel Pipe: SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, ... kinds of steel pipes.Such as seamless steel pipe, seamless steel tube, welded steel pipe, carbon steel pipe, anti-corrosion steel pipe and galvanized steel pipe.If you ...