AttachFiles/2023/06/01/2023060114064601217/140914.pdf
(关键字:济源钢铁 管坯)
带钢|热轧窄带钢热轧中宽带光亮冷带
坯料|方坯矩形坯低合金坯连铸圆坯
钢管|冷拔无缝管热轧无缝管直缝焊管
型材|角钢槽钢工字钢H型钢