| 摘要 |
<p>The door stopper fits under house or other doors and is formed as a tension spring constructed as an angular or rounded (6) plastic plate (1). Other materials can be contemplated. It can be produced in varying forms and designs, in the size range e.g. of 5 to 20 cm and approximately 1 to 2 mm thickness, with a bending radius of e.g. 40 mm. In principle, it is comparable in shape to a piece out of a tube.</p> |
