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- The Evolution of O- Rings By:-Ravi Kiran
O-Rings are a wonderful invention of the 21st Century and were invented in the year 1932 by Niels Christensen. From its humble beginnings where it was used for various simple applications like vacuum seals and piping , modern specialty O-Rings have progressed to a stage where they have found use on space shuttles in orbit and numerous other applications which could never have been imagined in the 1930's.
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