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日本粉末冶金工业会于1981年调查了11家制粉厂和21家粉末冶金制件厂,将粉末冶金烧结机械零件和烧结轴承材料1980年生产情况统计如下:
Japan’s Powder Metallurgy Industry surveyed 11 mills and 21 powder metallurgy parts factories in 1981 and statistics on the production of powder metallurgy sintered parts and sintered bearing materials in 1980 are as follows: