Three-ring chain device for mine car
A three-ring chain device for a mine car comprises a first outer chain ring (1), a middle chain ring (2) and a second outer chain ring (3), the first outer chain ring (1) is provided with a first lap joint part (11) and a second lap joint part (15), and the lap joint parts distributed along the cent...
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Format: | Patent |
Sprache: | chi ; eng |
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