With the car upside - down, the ball forces the plunger to seat against the guide plate.
当汽车倾倒时，滚珠迫使柱塞落在支承板上。
The pump valve has a structure of semi-spheric plunger with guide rod, and its seat and ball are aligned by means of a spring, and it is opened and closed in time.
泵阀件采用带导向杆的半球形柱塞结构，弹簧制动，精确控制阀球与阀座对中，启闭动作及时。
A plunger with guide bush and sixty PCS of rubber rings.
一个带有导套的柱塞和60只橡皮圈。
A plunger with guide bush and sixty PCS of rubber rings.
一个带有导套的柱塞和60只橡皮圈。
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