Fosforpronksi koostis

Fosforpronksi koostis:
(1) C5111: 3.5%~4.5%Sn, 0.03%~0.35%P, >99,5 protsenti (Cu pluss Sn pluss P).
(2) C5102: 4.5% to 5.5% Sn, 0.03% to 0.35% P, >99,5 protsenti (Cu pluss Sn pluss P). (3) PBC2: 87.0 protsenti -91.0 protsenti Cu, 9.0 protsenti {{10}}.{{12} } protsenti S, 0.05 protsenti -0,20 protsenti P (2B: 0,15 protsenti -0,50 protsenti P; 2C: 0,05 protsenti -0 .50 protsenti P),<1.0% impurity.