The utility model relates to a brake block automatic returning device which is applied to a hydraulic-disc type braking system of an oil drilling rig.
刹车块自动回位装置，应用于石油钻机液压盘式刹车系统。
The utility model relates to a brake block automatic returning device which is applied to a hydraulic-disc type braking system of an oil drilling rig.
刹车块自动回位装置，应用于石油钻机液压盘式刹车系统。
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