Prif y cwmni: baosteel, taigang, mwyndoddi haearn a dur anshan, shagang, amaethu, nanyang han, xingcheng, yingkou, masteel, tangsteel, Wen Feng, PingGang a melinau dur mawr eraill (bwrdd: Q235A, Q235B, Q235C Q235D, Q235E), (aloi isel: Q345A, Q345B, Q345C Q345D, Q345E), (gitâr dur carbon: 35 #, 45 #, 50 #), plât (cynhwysydd): Q345R, (plât boeler: Q245R), (dur, 65 mn, 40 cr, 42 crmo)