由湖北沙市第二机床厂、贵州虹山轴承厂联合主办的3MZ306轴承沟槽超精机技术座谈会于1986年11月28日到11月30日在贵州省安顺市召开,来自上海、无锡、恩施、株州、安顺等地轴承制造厂的工程技术人员二十余人出席了座谈会。会议期间,由沙市第二机床厂作了3MZ306轴承沟槽超精研机的概况介绍,贵州虹山轴承厂四车间介绍了该机床的使用情况,与会议代表在轴承生产现场参观了3MZ306超精机的工 The seminar of 3MZ306 bearing groove superfinishing machine technology co-sponsored by Hubei Shatan No.2 Machine Tool Plant and Guizhou Hongshan Bearing Factory was held in Anshun City, Guizhou Province from November 28 to November 30, 1986 and was held in Shanghai, Wuxi, Enshi, Zhuzhou, Anshun and other bearing factory engineering and technical personnel more than twenty people attended the forum. During the meeting, Shashi City, the second machine tool made 3MZ306 bearing groove superfinishing machine overview, Guizhou Hongshan Bearing Factory four workshops introduced the use of the machine tool, and representatives of the meeting in the bearing production site visited the 3MZ306 ultra-fine Machine workers