| 摘要 |
A flooring panel comprises a substantially rectangular tray (12) with free edges of all upstanding sides (12S) bent outwardly to form flanging (12F), a substantially rectangular load-sustaining board or block (16) substantially filling the tray (12) whose bottom and the adjacent major face of the board or block are bonded together (18B), and a substantially rectangular cover plate (14) extending over the tray (12) and the other major face of the board or block (16) and bonded (18C) to that face. The cover plate (14) at each of its edges (14E) is secured to the flanging (12F) whether by clenching (14R in Figure 2) or welding (25 in Figure 3). |
