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