Ratchet jack stand with robust frame, alloy steel holding, ratchet types. The counter-weighted pawl serves as a safe, secure locking device to prevent the load, welded steel construction for superior safety and strength.
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In principle, the hydraulic jack is based on Pascal principle, that is, the pressure of the liquid is the same everywhere, so in a balanced system, the pressure exerted on the smaller piston is relatively small, and the pressure exerted on the larger piston is also relatively large, which can keep t