| 摘要 |
<p>The invention relates to a coupling pipe for water heating and/or conditioning systems, of the type having one or more braided layets (2, 3). The main feature of the invention is that the pipe comprises, in the inside of the braided coating thereof, a first and a second tubular layer (4, 5), the first tubular layer being made of a halogenated thermopolymeric material (EPDM), and the second layer being made of a halogen-butylelastomeric material. The present invention also relates to a method for making the pipe.</p> |
