| 摘要 |
<p>In a remote heating line pipe, consisting of an inner pipe carrying the medium, an outer pipe and a thermal insulation layer, which is located between the pipes and consists of plastic which is foamed in situ on the basis of polyurethane or polyisocyanurate, the inner pipe consists of a cross-linked plastic and has a metallic layer on its inner and/or outer side and within its wall. The outer pipe consists of plastic, preferably likewise a cross-linked plastic.</p> |
