| 摘要 |
<p>The hollow moulded part with a closed cross section and reinforcing is constructed in one part and has a preform. The moulded part has a first section (1) with a first initial outside diameter (D1) and an initial wall thickness (b1), and at least one second section (2) with a reducing diameter in comparison to the initial outside diameter, and a wall thickness increased in comparison to the initial wall thickness, whereby the increased wall thickness forms the reinforcing.</p> |
