无焊接线 meaning in English
solderless wiring
Examples
- Copper and aluminum unified core or all copper core : header pipe diameter up to 22mm or 25mm , few welding line , high intension , and strong pressure resistance
板芯以铜铝复合为主或全铜，集热管直径达22mm或25mm ，无焊接线，高效能，强承压。