Silver brazing alloys import request Iran

I need Silver Brazing Rods 15% and 12% for brazing tungsten carbide inserts to cutting tools and rock drills. L-Ag15Cd/L-Ag12Cd

Its analysis is as follows

1-Ag : 7-10 / Cd : 4-8 / Zn : 33-37 / Cu : 48-52

2- Ag : 14-16 / Cd : 12-16 / Zn : 29-33 / Cu : 38-42