| 摘要 |
The flat tube (1) is produced from one piece of strip. It has a turbulence creators (5a, 5b, 5c, 5d) stamped into it, facing inwards. The flat tube is in the form of a multi-chamber to one it has at least two chambers (3, 4), which are separated by a partition wall (2) formed from the single piece of strip from which the tube is made. |
