输送机链传动链轮
conveyor chain drive sprocket
刮板输送机调整螺母
drag conveyor adjusting nut
输送机传动链张力
conveyor drive chain tension
平皮带传动输送机
flat band driving conveyor
输送机传动凹型机壳
conveyor drive drop housing
输送机传动充油泵
conveyor drive charge pump
输送机传动箱安全阀
conveyor drive relief valve
输送机传动箱压力表
conveyor drive pressure gauge
输送机传动液压系统
conveyor drive hydraulic system
输送机传动液压系统图
conveyor drive hydraulic system diagram