hammasrihma vahetus
As everyone understands, practically no aggregates or nodes of transport mode have all chances hammasrihma vahetus to work always.
Sooner or later they wear out and need either repair, or substitution, or in the replacement of individual parts of the unit. Still have all the chances to increase and all sorts of properties of exploitation. For example, the gaps between different parts of the car with a period of more, has the opportunity to increase the cost of oil, fuel or water. Running properties still have all chances to get injured. Including the behavior of a rather frequent technical service, sooner or later it will be a moment when it will not be taken any more, in order to remove some shortcomings or breakdown of your transport methods...
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