1) stick control valve
斗杆控制阀
2) backhoe stick control valve
反铲斗杆控制阀
3) bowl control valve stem
挖斗控制阀杆
4) stick control valve component
斗杆控制阀零件
5) stick crossover control valve
斗杆转换控制阀
6) stick main control valve
斗杆主控制阀
参考词条