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革新前,42620轴承用铜保持架,由于原材料供应较紧张,为了节约用铜,工人同志提出“以铁代铜”生产保持架。
Before the reform, 42620 bearings with copper cage, due to the tight supply of raw materials, in order to save copper, workers comrades proposed “iron and copper” production cage.