可伸长的斗杆和辅助控制阀
extendable stick and auxiliary control valve
杆体可伸长锚杆
rockbolts with extensible rod
工厂装可伸长斗杆
factory installed extendable stick
可伸长斗杆部分
extendable stick valve section
可伸长斗杆的铲斗油缸
extendable stick bucket cylinder
可伸长斗杆的反铲斗
extendable stick backhoe bucket
可伸长斗杆的反铲斗油缸
extendable stick backhoe bucket cylinder
可伸长斗杆的附件
extendable stick attachment
可伸长斗杆的加垫步骤
extendable stick shim procedure