Standard: GB/T 8162 Grade: 10, 20, 35, 45, Q345, 40Mn2,45Mn2,27SiMn, 20CrMo, 35CrMo. OD: 6-660 mm Length:39.34'/12M ... .max Standard: GB/T 8162Grade: 10, 20, 35, 45, Q345, 40Mn2 ... ,12CrNi2, 12CrNi3, 12CrNi4,40CrNiMoA, 45CrNiMoVA.Out Diameter: 6-660 mmLength:39.34'/12M.maxFOB Price/MT:USD680--1,580.00MOQ:10MT ...