| 摘要 |
A jack board assembly fixedly mounted on the lift of a garage jack and adapted to lift a load with the lift, including a jack board having a top recess and top blocks around the top recess, and an anti-skid convex pad mounted in the top recess of the jack and defining with the top recess an air chamber, the anti-skid convex pad having a plurality of air vents for exhaust of air from the air chamber when compressed by the load put on it.
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