Copper
Cu
99.97% Min.
Silica
Si
0.3ppm Max.
Cobalt
Co
0.2ppm Max.
Bismuth
Bi
0.1ppm Max.
Lead
Pb
0.2ppm Max.
Tellurium
Te
0.05ppm Max.
Iron
Fe
2ppm Max.
Silver
Ag
10ppm Max.
Aluminum
Al
0.5ppm Max.
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