| 摘要 |
This device is a hose for air conditioning purposes that is a barrier hose. The hose comprises an innermost tube (1) of a thermoplastic vulcanizate. The innermost tube of thermoplastic vulcanizate is coextruded with a flexible polyamide barrier material as a second tube (5). A backing (2) of thermoset rubber is extruded or calendared over the polyamide barrier tube. A reinforcement layer (4) follows which is then covered with an EPDM outer cov er (3). |
