青岛铸造机械厂为了更好地做好用户技术服务工作,1981年3月19日至4月9日,在青岛连续举办了两期“抛丸清理设备使用与维修”用户学习班,每期学习时间为九天。应邀参加单位44个,学员共89人,遍布全国12个省市。学员当中,大部分是生产第一线的操作工、维修工,也有部分设备(工艺)技术人 Qingdao Casting Machinery Plant in order to better do the user technical services, March 19, 1981 to April 9, held in Qingdao in two consecutive “Shot Blasting Equipment Maintenance and Repair” user classes, each learning The time is nine days. Invited to participate in 44 units, a total of 89 students, all over the country 12 provinces. Most of the trainees are production line operators, maintenance workers, and some of the equipment (craft) technicians