| 摘要 |
The invention concerns a radiator structure comprising several elements (10) for heating systems in households, offices and the like, where each radiator element is composed of a top and bottom head (11, 12) and of a set of parallel tubes (13) positioned and fixed between said heads, and the heads are made by injection moulding of a thermoplastic material and the tubes are extruded by co-injection of an external layer (13') of a plastic material and an internal reinforcing fibre or glass beads layer (13''). The heads have cavities or lead-ins to insert the ends of the tubes into and to form the radiator they are welded side by side.
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