上海铁路局科学技术委员会于1981年8月18日至20日,邀请路内外有关35个单位,对上海机器制造学校,上海铁路局工务处,南京工务段共同研制的“YQD-8型液压起道器”召开了技术鉴定会。 该型起道器是根据铁道部绵阳养路机械定型选型会议推荐的技术参数,并参考南京工务段提供的样机和图纸,再经过测试所提出的产品技术参数,并以此 Shanghai Railway Bureau Science and Technology Commission on August 18, 1981 to 20, 35 road inside and outside the invitation of the relevant units, the Shanghai Machine Building School, Shanghai Railway Bureau, Public Works Department, Nanjing Works jointly developed by the “YQD-8-type hydraulic Road ”held a technical appraisal meeting. This type of starter is based on Mianyang Road Maintenance Ministry of Railways stereotypes stereotypes recommended technical parameters and refer to the Nanjing Works section to provide prototypes and drawings, and then tested by the proposed product technical parameters, and as such