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马钢一铁厂七号高炉(106米~3)从1981年4月开始搞了炉前膨胀矿渣珠生产工业试验,已初步显示出优越性.测得的炉前膨胀珠工艺若干重要参数说明该工艺比炉前水力
The No.7 blast furnace (106m ~ 3) of Masteel Iron & Steel Co., Ltd. started the industrial experiment on the production of expanded slag beads before blast furnace in April 1981. It has initially shown the superiority. The process is more hydraulic than the furnace