| 摘要 |
PURPOSE: A pipe heater is provided to reduce manufacturing costs and process time by simplifying the configuration of a device. CONSTITUTION: An internal sheet(14) covers a pipeline(12). A hotwire(16) is fixed to the internal sheet or a warm pad(18). The warm pad is laminated in the other side of the internal sheet. The warm pad maintains the heat emitting from the hotwire. A stitch(20) clinches the hotwire on the internal sheet or the warm pad. A cover jacket(22) holds the warm pad in the pipe.
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