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1987年宝钢生产钢锭323万吨,用铝1620吨,在节铝方面采取了以下措施: 一、采用挡渣球挡渣出钢,钢包渣层厚度控
In 1987, Baosteel produced 3.23 million tons of steel ingots and 1,620 tons of aluminum. The following measures were taken in the section of aluminum section: First, slag tapping slag tapping and ladle slag layer thickness control