| 摘要 |
A flexible hose suitable for transporting crude oil has a fluid sealing layer of flexible polymeric material disposed between radially inner and radially outer support layers which resist any tendency for the polymeric material to expand. The inner support layer is formed by at least one helically wound element the successive turns of which are interlocked and define in the outer surface of the inner support layer a helically extending crevice, and the surrounding polymeric material is arranged to substantially wholly fill said crevice.
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