Quality: S 48%min; Fe 43%min; SiO2 3%max; H2O 1%max. Size: 3-15mm; 10-30mm; 10-50mm; 10-80mm. Pyrite powder(FeS2): Quality: S 48%min; Fe 43%min; SiO2 3%max; H2O 1%max. Size: 100mesh X down; 200mesh 98% down; 325mesh 70%min down; 400mesh 60% min down 电话 0562 2168683 传真 0562 5831860 手机 13605622194