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简介:我国是钢铁生产大户,内衬不锈钢复合钢管钢铁产量连续多次蝉联世界之首,今年上半年,中国钢铁行业继续保持较快发展,粗钢产量达到3.5亿吨,增长9.6%。     在这样高速度、高产量的背后,带来的是能源的浪费和
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