C10200 mkuwa+Cu-OF
C10200+TU1+COPPER+Golden plating
C10200+TU2+COPPER+Golden plating
C11000+brass+Cu-ETP
mkuwa C35600+CuZn34Pb2
mkuwa+C28000 +CuZn40
mkuwa+C28000
C10200+TU2+COPPER