Familiar with railway mechanical metal process, such as production, manufacture and repair of the coupler, buffer, car-body, bogies and other railway equipments.
熟悉铁路机械金属工艺，如车钩、缓冲器、车体、转向架等铁路机车车辆设备的生产、制造与检修。
3
Loosen bolts on groove coupler and remove groove coupler and cover plate from valve body.