1975年11月21日至30日一机部在长沙市召开了矿山机械、工程机械、起重运输机械和液压气动元件行业组长厂会议。到会的有107个单位,149名代表。这次会议以阶级斗争为纲,认真学习了毛主席的一系列重要指示,总结交流了开展行业活动和提高产品质量的经验,有七个单位作了大会发言,八个单位印发了书面材料,讨论制 From November 21st to 30th, 1975, a machine department held a meeting of industry leaders of mine machinery, engineering machinery, crane transport machinery and hydraulic pneumatic components industry in Changsha. There were 107 units and 149 delegates. Taking the class struggle as the guideline, the conference carefully studied Chairman Mao’s series of important directives, summed up and exchanged experiences in carrying out industry activities and improving product quality. Seven units made speeches and eight units issued written materials. Discussion system