| 摘要 |
A structural member (20), including a longitudinally extending core (22), and at least two longitudinally extending ribs (24, 26, 28). Each rib (24, 26, 28), in profile, extends outwardly from the core (22) to an outer rib edge (30, 32, 34). The member (20) also includes a receiving aperture (36) in a first end (38) of the member (20) for receiving an end of an adjacent member (42). |
