1. Standard: GB/T11263-2005, GB/T700, ASTM, EN, DIN. 2. Steel Grade: 55C, S450J0, UC305*305 1.standardGB/T 11263, GB/T700, ASTM, EN, DIN, JIS2. Steel gradeQ345C, Q345D, Q345E, Q345EL, Q420D, Q460EM, ST37, A36, SS400, ST52, SM490, SM570, 55C, S450JO, UC305*3053. Length6METER, 9 METERS, 12METERS or customized.4. packingBlack painting and in bundles5. shippingBy bulk cargo or container6. payment100% ...