chain finger feed链指式排肥器
chain stitch feed-off arm machine埋夹车
endless chain feed链式排肥器
Chain feed motor旋转气马达
endless chain feed mechanism循环链式排肥装置
endless chain feed type循环链喂入式
chain feed onveyer链式喂入输送器
chain feed motion let off链式送经装置
wagon drill with chain feed带链式推进器的钻车