| 摘要 |
In order to manufacture a reinforced part of a window or door, a body (100) of thermoplastic material extruded to a length longer than the intended length of the part. A reinforcing insert (20) also of thermoplastic material is then inserted in the hollow interior (11) of the body (100) and secured to a wall of the body. The body (100) is then cut to the material length, with the reinforcement (20) occupying the full length of the cut body. Normally this is achieved by the cutting operation also cutting the reinforcement material. The reinforcement material may be extruded simultaneously with the body but is preferably inserted into the body separately. |
