Non-coal heating system

Non-coal heating system

  • CN 1,031,221 C
  • Filed: 10/11/1988
  • Issued: 03/06/1996
  • Est. Priority Date: 10/11/1988
  • Status: Active Grant
First Claim
Patent Images

1. A kind of heating and cooling system mainly is made up of water circulation system, pipeline and heat exchanging piece, it is characterized in that many of native systems adopt well around, and a glance inverted well is in the centre.

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