... азотированная поверхность сохраняет повышенные антикоррозионные свойства. AbstractThe problem of corrosion resistance of the working surface of the cylinders of oil-well sucker-rod pump is one of the most actual problems in the operation of pumps in corrosive well. Without high resistance to corrosion in the cylinder wells produce its resources much earlier than the consumer expects it. In order to extend the "life" of ...

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