BCuP-2 (0% Silver) BCuP-3 (5% Silver) BCuP-5 (15% Silver) BCUP-6 (2% Silver) RBCuZn-A (Naval Bronze) RBCuZn-B (Nickel Bronze) RBCuZn-C (Low Fuming Bronze Bare and Flux Coated) RBCuZn-D (Nickel Silver)