| 摘要 |
A heat exchanger includes a pair of header pipes, a plurality of heat-transfer tubes parallel to each other, a block provided at a position on a single or two or more heat transfer tubes between the header pipes and having at least one of an inlet port and an outlet port for a heat exchange medium. The block is freely located at a desired medial position between the header pipes as required. Since the inlet port or outlet port is located at an optimum position between the header pipes, connection of a pipe or tube thereto can be easily accomplished.
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