1We are manufacturer, low price, good quality 2Our products a price advantage 3Our delivery period is short Standard: BS, GB, DIN, ASTM, APIStandard: BS 1387, GB 5310-1995, GB 3087-1999, ...Grade: 10#-45#, Mo, 16Mn, A53-A369, Q195-Q345Grade: 10#, 20#, 45#, 15Mo3, 16Mn, A53(A,B), A1...Thickness: 0.5 - 70 mmSection Shape: RoundOuter Diameter: 6 - 1220 mmPlace of Origin: ShanDong China (Mainland) ...