Yuguang welding company provide different Al Cu shapes brazing materials: Ring, Rod, Square Rod,Roll,h are used in welding al-al,al-cu,al-ss. It will be no extra flux required when operating. We can provide quality brazing materials and Application for low temperature or higher termperature. Copper brazing rod, Aluminum flux cored rod, zinc aluminum rod etc. Al Cu Steel Welding Rod And RingFor example: GR4047F Alloysï¼Al Si Flux: KALF4, CsALF4 Brazing Tem. Range(âï¼ï¼ 570-590 Applicanceï¼ Al-Al GR4048F Alloysï¼Al Zn Flux: KALF4, CsALF4 Brazing Tem. Range(âï¼ï¼ 410-450 Applicanceï¼ Al-Al, Al-Cu,Al-Sus