| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a resin covered copper pipe or copper alloy pipe which allows the bending process by a manual work, and has an excellent workability and a simple structure. SOLUTION: A resin covered copper pipe 3 is formed of a copper pipe 1 and a polyvinyl chloride resin layer 2 to cover the copper pipe 1. In the polyvinyl chloride resin layer 2, the ratio S/S0 of the composition amount S of the polyvinyl chloride and the composition amount S0 of a plasticizer is 1.0 to 2.1, while the ratio E/E0 of the extension rate E of the polyvinyl chloride resin layer 2 and the extension rate E0 of the copper pipe 1 is 6 or more.</p> |
