Suitcases on wheels is widespread. But what if, going on a long journey, you take, except for the small suitcase, and even other things! Take a handle, a hook of steel wire— and all the load will ride on the same wheels.
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With a fan along the river
Electric drive? For a boat? So, doesn’t our industry produce enough gasoline outboard motors? Go to a sports store and choose any one - from the lightest, suitable even for a kayak, to the...
