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我们最近接到几位读者对于化铁炉方面,提出几个有价值的问题来商讨。我们除了登载读者原信外,并给予一切可能的解答。更希望国内专家们多多的指教。孙云
Recently, we have received several readers’ opinions on the chemical iron furnace and asked several valuable questions to discuss. Apart from publishing the original letter of the reader, we give all possible answers. I hope more and more advice from domestic experts. Sun Yun