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1984年12月,冶金部军工办、国家海洋局在青岛市主持召开了由天津第一钢丝绳厂生产的超长钢丝绳、阶梯钢丝绳试制定型转产鉴定会。
December 1984, the Ministry of Metallurgical Military Office, the State Oceanic Administration held in Qingdao hosted by the first wire rope factory in Tianjin production of long steel wire rope, steel wire rope trial stereotypes conversion Council.