| 摘要 |
<p>PCT No. PCT/FR96/01493 Sec. 371 Date Mar. 30, 1998 Sec. 102(e) Date Mar. 30, 1998 PCT Filed Sep. 25, 1996 PCT Pub. No. WO97/13091 PCT Pub. Date Apr. 10, 1997A duct comprising a sealed inner tube (1) and a reinforcement (2) made of at least one strip wound in a spiral around a central axis (11) of the inner tube. The strip (10) is flat and includes at least one layer of longitudinal filamentary rovings (6) and means for assembling said filamentary rovings comprising a loosely woven weft yarn (7) and a bonding material (8) provided at least at the interface between said filamentary rovings and said weft yarn. The assembly means hold the longitudinal rovings together along the full length thereof and impart a compactness of at least 39% to said strip.</p> |
