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1987年5月下旬国家机械委科技司会同质量安全监督司、机床局在成都联合主持召开了贯彻六项基础标准(公差与配合、形状和位置公差、表面粗糙度、齿轮、螺纹、键与花键)工作会议。出席会议有国家机械委内司局,各省、市、自治区厅(局),产品归口研究所,部分企业代表,煤炭部及冶金部等有关人员共146名代表。
In late May 1987, the National Machinery and Technology Division together with the Quality and Safety Supervision Department and the Machine Tool Bureau co-chaired in Chengdu six basic standards (tolerances and fits, shape and position tolerances, surface roughness, gears, threads, keys and flowers Key) work conference. The meeting was attended by a total of 146 representatives from the National Machinery Commission’s Internal Affairs Bureau, departments (bureaus) of provinces, municipalities, and autonomous regions, institutes of product import, representatives of some enterprises, and coal and metallurgy departments.