Brass ingots

we are looking for new suppliers for brass ingots CuZn39Pb2 , chemical compositions % as follows:
Cu min 56,5 max 59
Zn rest
Pb min 1,2 max 2,3
Sn max 0,7
Al max 0,3
Fe max 0,5
Mn max 1,0
Ni max 0,5
Si max 0,2
P max 0,05
Sb max 0,05
Bl max 0,05
As max 0,05
Total impurities 1,8

Quantity is approx. 30 ton per months.