Seamless steel pipe details: 1: PED , ISO , API certificate. 2: 300 ton per month. 3: ASTM A106 Gr.B 4: ASME B36.10 Standard: JIS, GB, DIN, ASTM, APIStandard: JIS G3454-2007, JIS G3455-2005, GB/T ...Grade: 10#-45#, 16Mn, ST35-ST52, Q195-Q345Grade: 20#, 45#, 16Mn, St52, St42, Q345, Q195, ...Thickness: 6 - 30 mmSection Shape: RoundOuter Diameter: 80 - 180 mmPlace of Origin: China (Mainland) ...