Copper at Tanso C10200 tanso+Cu-OF C10200+TU1+COPPER+Golden plating C10200+TU2+COPPER+Golden plating C11000+tanso+Cu-ETP tanso C35600+CuZn34Pb2 tanso+C28000 +CuZn40 tanso+C28000 C10200+TU2+COPPER