... C) Thickness: 1.24 - 63.5 mm Section Shape: Round Outer Diameter: 10.3 - 1016 mm Place of Origin: China ( ... 4”,1/2” --- 36", 38", 40” OD*WT: (mm) 10.3-1016 * 1.24-31.75 Grade: A, B, X42 ... com Main Products : 1. Oil and Gas Transmission Pipe: OD: 10.3mm - 1016mm with wall thickness: 1.7mm - 52mm 2. OCTG ... Products: OD: 60.3mm - 508mm with wall thickness: 4.24mm - 16.13mm 3. ...