Therefore, a small scale of electromagnetic spiral column for the reground bought iron concentrate was conducted in the old system of the concentrator.
英
美
- 的铁精矿,为提高产品质量,提出外购铁精矿品位达到69%25的目标,选矿厂对外购精矿在老系统进行"电磁螺旋柱"小型试验。