1) bulldozer quick drop valve
推土机速降阀
2) bulldozer lift valve
推土机升降阀
3) bulldozer lift valve spool
推土机升降阀阀芯
4) bulldozer lift control valve
推土机升降控制阀
5) bulldozer lift relief valve
推土机升降安全阀
6) bulldozer lift valve section
推土机升降阀部分[截面]
参考词条