CVN(Charpy V-notch) toughness and grain size number of J55 grade oil casings produced by Baotou Iron and Steel Company did not meet the reiative standards in the past.
本文针对包钢原来生产的J55石油套管冲击韧性不足，晶粒粗大的问题开展研究。
Vertical ring magnetic separators have been used in Mineral Processing Plant of Baotou Iron and Steel Company, which request high-quality cooling water to cool down, thus maintain steady operation.
包钢选矿厂选矿工艺立环强磁机的应用，其设备冷却水的水质要求较高。
Trials are conducted on the slag retaining technique in the large open hearth with dual tapping spouts at Baotou Iron &Steel Company and marked results have been achieved in the tests.
本文介绍包钢对大型固定式双槽出钢平炉进行了挡渣技术的试验、研究及取得的显著效果。
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