| 摘要 |
PURPOSE: An electric heating pipe is provided to omit processes for fitting electric heating wires into a hot water pipe when the hot water pipe is installed by automatically an electric heating wire into an embedded part of the hot water pipe. CONSTITUTION: An electric heating pipe comprises an embedded part(12), a hole(12a), and an electric heating wire(20). The embedded part is unitarily extruded with the hot water pipe. The hole in which the electric heating wire is embedded is formed in the embedded part. The electric heating wire is embedded under the hole.
|
