Standard: GB/T 8162 Grade: 10, 20, 35, 45, Q345, 40Mn2,45Mn2, ... . OD: 6-660 mm Length:39.34'/12M.max Standard: GB/T 8162Grade: 10, 20, 35, 45, Q345, 40Mn2, 45Mn2,27SiMn ... : 6-660 mmLength:39.34'/12M.maxFOB Price/MT:USD680--1,580.00MOQ:10MT Usage: Seamless Steel Tubes for Structural Purposes ...