近年来，洛阳有色金属加工设计研究院自主开发研制出了国产第一台轧制油全油回收系统。
The home made first full rolling oil regeneration system has been developed by Luoyang Engineering and Research Institute for Nonferrous Metals Processing in recent years.
近年来，洛阳有色金属加工设计研究院自主开发研制出了国产第一台轧制油全油回收系统。
The home made first full rolling oil regeneration system has been developed by Luoyang Engineering and Research Institute for Nonferrous Metals Processing in recent years.
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