| 摘要 |
In order to develop known solid or hollow plastics profiles, particularly those as used to absorb tensile, bending, and/or pressure loads, such as are primarily used as insulating segments in composite profiles containing metallic profiled elements, such that the problems normally encountered with the use of higher filler contents of the plastics material used, intended to favorably influence the expansion characteristics, are ressolved, the invention proposes that said profiles contain a surface layer of a solid, non-porous first plastics material and, in the core region, a fine-pored cellular structure of a second plastics material.
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