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建议扩大５０号钢车轴在铁道车辆上的应用我国铁路部门几十年来一直使用４０号钢材质的车轴，使用寿命短。经铁科院和生产厂家共同研制生产的５０号钢机车用车轴，通过几年来的研究试验及装车运用考验，积累了实践经验取得了实效，于１９９６年开始在车辆用车轴上进行了推...
Proposed to expand the No. 50 steel axle applications in railway vehicles China’s railway sector for decades has been the use of 40 steel axles, short service life. The steel axles for No.50 steel locomotive jointly developed and produced by Iron Academy and manufacturers have gained practical results through years of research and test on loading and unloading, and started to be carried out on the axles of vehicles in 1996 ...