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elastic rings with low radial thickness in one or more parts, based on the deep pit of piston or a fire breaks.for required and / or raschiaolio on thermal engines (or compressors or work vehicles and control systems), subject to the changes of pressure temperature and diameter of the cylinder during thetheir race
elastic rings with low radial thickness in one or more parts, based on the deep pit of piston or a fire breaks.for required and / or raschiaolio on thermal engines (or compressors or work vehicles and control systems), subject to the changes of pressure temperature and diameter of the cylinder during thetheir race
