| 摘要 |
<p>A conveyance member for materials having virtually fluid behaviour inside channels (10) comprises a cable (11), formed from polyester fibres, and a plurality of conveyance elements (12) radially projecting from the cable (11) and spaced along its axis and directly moulded in position on the cable (11). The external surface of the cable has a sheath of polyurethane (14) on which the conveyance elements (12) are provided in thermoplastic polyurethane to achieve a permanent constraint between the different component parts. <IMAGE></p> |
