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山于焦炭供应紧张,苏州市农业机械厂的小高炉采用了部分白煤代替焦炼铁。该厂在采用部分白煤代替焦炭入炉前后的生产指标变化如下:
Mountain in the tight supply of coke, Suzhou City, a small blast furnace farm machinery used instead of white coal coke iron. The plant uses some coal instead of coke into the furnace before and after the production indicators changes are as follows: