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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Known tip to RUB the screw with soap, to facilitate its mounting in the wooden piece. If it is plastic, for example, sealing the dowel into the hole — then the screw for the same...
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What started karting? In the 30-ies very popular among American boys was competition for non-motorised trolleys moving along slant paths. Some Joker aptly called them "racing soap...
