| 摘要 |
A flexible conduit (1) for vehicle engine coolant circuits, which conduit (1) comprises a series of at least a first relatively rigid portion (4) and a second relatively deformable bellows portion (5) capable of being deformed at least into a curved portion; and an inner (8) and outer (7) wall made of different plastic materials eg. polythene and nylon respectively. The conduit may include integral end couplings eg. 12, 12, may be coupled in lengths eg. (Fig 4 not shown) or may comprise T-pieces which may comprise an inner actual support layer 33. A groove 17 may be included in a portion 4 for locating a conduit support 18. <IMAGE>
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