| 摘要 |
The cross-member has a beam (12) forming a channel (13) along the length of the beam, where the channel has an opening (14) on one of its side faces. The channel has a duct (15), made of a rigid insulating material, with an opening defined by a mouth located opposite the opening (14). The duct opening is slightly smaller than the opening (14), and is located inside the channel. A sleeve shaped interface device (16) extends through the opening (14) and has a joint made of deformable material. |
