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Preferred term

621.5Pneumatic energy, machinery and tools. Refrigeration  

Note

  • Compression and rarefaction equipment. Wind power machines (wind turbines, windmills etc). Refrigeration technology. Production of low temperatures (cryogenics)
  • Details by special auxiliaries 62-1/-9

Notation

  • 621.5

URI

http://udcdata.info/043968

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