Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from medical bubbles. Such substitutes being kept quite steady.
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At the construction sites of the Baikal-Amur mainline and KAMAZ, large and small Komsomol — everywhere can be used a variety of mechanical AIDS created by the innovators of the...
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