1983年10月15～19日,中国铁路工程总公司在沈阳主持召开了“征山200推土机和CTY9铲运机”鉴定会。有关研究所、惋校、制造厂、使用和领导机关共64个单位98名代表组成了鉴定委员会。委员们听取了两机设计试制总结、性能测试和1500小时工业性试验等技术报告;观看了两机作业表演;了解了两机解体检查情况和征山180C推土机在 On October 15th to 19th, 1983, China Railway Engineering Corporation presided over the “Zhengshan 200 Bulldozer and CTY9 Scraper” appraisal meeting in Shenyang. A total of 98 representatives from 64 institutions, including institutes, schools for the deaf schools, manufacturing factories, use, and leading agencies, formed the appraisal committee. The committee members heard technical reports such as two-machine design trial production, performance testing, and 1500-hour industrial trials; they watched two machine operations; they learned about the disintegration of the two aircraft and the levy of the Shanshan 180C bulldozer.