1. Thickness:0.8--14mm 2. Specification:20*30--80*120mm 3. Material: Q195, Q215, Q235, Q345B, X42, Gr. B rectangular hollow section1. Item: square & rectangular hollow section2. Standard: GB, ASTM, BS, JIS,3. Material: Q195, Q215, Q235, Q345B, X42, Gr. B4. Specification: OD: 10*20mm-100*500mm;WT: 0.6mm-12mm; Length: 5.8 meters for 20' container, 6 meters to 12 meters for 40' container.5. ...