Prefabricated member of smoke exhaust and gas exchange pipeline

Prefabricated member of smoke exhaust and gas exchange pipeline

  • CN 103,453,230 A
  • Filed: 09/02/2013
  • Published: 12/18/2013
  • Est. Priority Date: 09/02/2013
  • Status: Active Application
First Claim
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1. a smoke discharge ventilation pipeline prefabricated component, it is characterized in that:

  • this pipe prefabrication part comprises polygonal pipeline and polygonal cell body, between each face of its inwall (1), joint connects with the cylinder of cylindrical arc angle (2) shape.

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