The production level of ironmaking system of Bao Steel has reached a international advanced level.
宝钢炼铁系统的生产技术总体水平达到了世界先进水平。
The system has the international advanced level, and obtained national patent.
该系统具有国际先进水平、并获得了国家专利。
The system has the international advanced level, and obtained national patent.
该系统具有国际先进水平、并获得了国家专利。
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