... finishes, savings in machining time, reproducibility, and assembly savings1.Low initial tooling costs : Initial ... 35 & Precedent 71Brass, Bronze, and Copper2,000 lbs.Pure copper and all copper-based alloys including Hi-Con, CL2 ... , CL3, Copper 85-5-5-5 Brass, 660 Bronze, 954 and ... 958 Al Bronze, 421 and 423 ...