Isi ụlọ ọrụ: baosteel, taigang, anshan ígwè na ígwè smelting, shagang, cultivation, nanyang han, xingcheng, yingkou, masteel, tangsteel, Wen Feng, PingGang na ndị ọzọ nnukwu ígwè igwe ('s osisi: Q235A, Q23DB, Q2535C Q2 Q235E), (obere alloy: Q345A, Q345B, Q345C Q345D, Q345E), (carbon ígwè guitar: 35 #, 45 #, 50 #), efere (container): Q345R, (ofefe efere: Q245R), (steel, 65) mn, 40 cr, 42 crmo)