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对我国粉末冶金机械零件工业生产的 34家主要企业 (其中有 2个企业建立于 1994年 )和 10家发展较快的企业的调查结果见下表 ,可以看出1991- 1999年我国粉末冶金机械零件工业结构的变化年销售量 (ｔ) 19911992 19931994 19951996 199719981999提供统计资料的企业数 3132 32 3434
The survey results of 34 major enterprises (2 of which were established in 1994) and 10 fast-growing enterprises of industrial production of powder metallurgy machinery parts in our country are shown in the following table. It can be seen that from 1991 to 1999, China’s powder metallurgy machinery Changes in industrial structure of parts Annual sales (t) 19911992 19931994 19951996 199719981999 Number of enterprises providing statistical data 3132 32 3434