| 摘要 |
Subject: composite aluminium-and-PVC profile for sashes. Constitution: an aluminium profile 1 for the outer side of a sash and a PVC profile 2 for the inner side of same. The aluminium sash 1 adjoins, in a mechanical manner, the PVC profile 2 in the lengthwise direction of a common side.Advantage: compared to simple sashes, said composite profile exhibits significant improvement of its heat-insulation properties and relative improvement of its mechanical properties in respect to a simple PVC profile. |
