AttachFiles/2020/04/22/2020042214352401214/143555.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