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简介:经过一年多的努力,外涂塑内衬不锈钢复合管日前,宝通钢铁低碳包晶钢圆坯质量攻关取得新突破,表面凹陷问题基本得到解决,产品一次合格率达98.8%,创历史新高。    据了解,国内不少生产厂家因受包晶钢钢种特性特别是
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