| 摘要 |
The pad (1) has multiple carriers (3) secured with a base board (2), where each carrier comprises an upper metal plate (5a) and a lower metal plate (5b) that are rectangular formed with one another and connected together, so that the metal plates are connected to fastening elements (7) along respective central to transversely extending portions contact with each other. Four supporting teeth (9) are secured at the upper metal plate or at the lower metal plate, where each supporting tooth is vertically extended in proximity corners of the upper or bottom plate. |
