Ang nag-unang kompanya: baosteel, taigang, anshan iron ug steel smelting, shagang, cultivation, nanyang han, xingcheng, yingkou, masteel, tangsteel, Wen Feng, PingGang ug uban pang dagkong steel mill ('s board: Q235A, Q235B, Q235C, Q235D Q235E), (ubos nga alloy: Q345A, Q345B, Q345C Q345D, Q345E), (carbon steel guitar: 35 #, 45 #, 50 #), plato (container): Q345R, (boiler plate: Q245R), (steel, 65 mn, 40 cr, 42 crmo)