Upper and lower spring seat assembly with guiding function
The utility model discloses an upper and lower spring seat assembly with a guiding function. The upper and lower spring seat assembly comprises a pedal seat, a big arm is rotatably mounted at the top in the pedal seat through a pin shaft, a pedal part is integrally mounted at the tail of the big arm...
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Format: | Patent |
Sprache: | chi ; eng |
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