| 摘要 |
PROBLEM TO BE SOLVED: To provide a hose for oil-pressure piping having a high heat resistance while maintaining an oil resistance as well. SOLUTION: The hose comprises an inner tube of plural resin layers and a reinforcing layer at the outer side of the sectional radius direction of the inner tube of plural layers, and the inner tube of plural layers comprises an inner layer containing at least one of a polyamide resin and a polyamide elastomer and an outer layer containing a polyester elastomer, and the both layers are adhered with each other. COPYRIGHT: (C)2005,JPO&NCIPI
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