... lock plunger 锁紧栓 locking plunger 止动杆 lower plunger 下冲杆 ...
基于142个网页-相关网页
locking crank plunger 紧锁柱塞
The utility model can efficiently prevent air locking phenomena and the eccentric wear of the plunger, increase the production quantity of raw oil and extend the service life of the oil well pump.
本实用新型可有效地防止“气锁”和 柱塞偏磨，提高原油产量和抽油泵的使用寿命。
youdao
应用推荐
模块上移
模块下移
不移动