Posted on 3-11-2020 by Nicky
With a jack, you can easily lift heavy objects. Jacks are used for many applications. By means of a normal crank or a ratchet crank, you can lift up to 20,000 kg with low force. The advantage of a ratchet crank over a normal crank is that, in tight spaces, for example, you can jack up the load by moving the crank back and forth....
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