In 1980, the institute and Beijing municipal electrical factory has successfully developed line frequency coreless bathroom plug stem bottom note type electric insulation casting.
年，北京市机电研究院与北京玛钢厂研制成功工频无芯塞杆底注式保温浇注电炉。
The first domestic fine grain cast vacuum furnace on mold agitation process has been developed successfully by Beijing Institute of Aeronautical Materials.
北京航空材料研究院研究制造了我国第一台铸型搅动工艺细晶铸造真空炉。
The first domestic fine grain cast vacuum furnace on mold agitation process has been developed successfully by Beijing Institute of Aeronautical Materials.
北京航空材料研究院研究制造了我国第一台铸型搅动工艺细晶铸造真空炉。
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