每个压缩缸内装有一回转活塞和与回转活塞外表面相啮合的滑片。
A gyration piston and slide sheets engaged with the outer surface of the gyration are installed in each compression cylinder.
本发明涉及一种可自动回带的手拉器，其包括有一本体、一扳动件与一回转 装置；
The invention relates to a self-rewinding hand puller, which includes a body, a trip part and a turning device;
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