| 摘要 |
<p>The box (1) has a grid cover (5), and a main base (3) anchored at an interior of a continuous opening of a wall of a switch cabinet and/or control panel by flexible fastening insertion pieces (4). The main base comprises a rear grid, which is connected with peripheral contrast frames by lateral walls. The contrast frames consist of lateral edges that are connected with an upper edge and a lower edge. The fastening insertion pieces comprise a section in the form of a convex flat spring and consist of a material Hytrel(RTM: thermoplastic polyester elastomer).</p> |
