关于改进部分圆销安装方式的建议沈阳铁路局白城车辆段孙成刚我国货车由于无固定配属运用，有些圆销、开口销组装的方式已很不适应。因易被人为拆卸，造成配件丢失的情况几乎随处可见。这些部位主要是：车门折页圆销、提钩链圆销、制动缸前链圆销。由于上述圆销丢失，造成... Proposal to improve the installation of some of the round sales Shenyang Railway Bureau Baicheng depot Sunchenggang China’s trucks due to the use of fixed associated with some of the sales, the opening pin assembly has been very suited to the way. Easy to be artificially disassembled, resulting in the loss of accessories almost everywhere. These parts are mainly: door hinge sales, to mention the hook chain, brake cylinder front chain round pin. Due to the above pin missing, resulting in ...