| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of part items and costs. SOLUTION: A tubular member 1 which is provided with a water channel 2 at the center and a plurality of refrigerant channels 3, etc., each having a circular cross section smaller than that of the channel 2, is manufactured by continuous casting. Since a brazing process and a brazing filler are unnecessary, the number of part items and costs are reduced. |
