一机部矿山局与电工局于1978年4月在大连召开了桥吊统一设计工作会议。参加会议的有桥吊主机厂、电器配套厂、科研单位的代表共70多人。与会代表认为,由于四人帮的干扰和破坏,起重机的生产和科研工作也蒙受很大的损失。目前各厂生产的桥吊主参数和极限尺寸都不统一,产品质量存在不少问题,给用户带来 A mechanized mines Bureau and the Electrical Engineering Bureau held a unified design work meeting for bridge cranes in Dalian in April 1978. A total of more than 70 delegates attended the conference, including the main bridge crane plant, the electrical equipment factory and scientific research institutes. The participants believed that due to the interference and sabotage of the gang of four, the cranes’ production and research work also suffered great losses. At present, the main parameters of the bridge crane manufacturers and the ultimate size are not uniform, there are many product quality problems to the user