광석, 중금속

미국

1）copper concentrate ≥ 15%，sulfur≥ 25% （2）copper ore ≥ 10 %  Sulfide or oxide both ok  As<0.5%,Cl<0.5%,Cd<0.05%, Hg<0.01%,F<0.1%, Pb+Zn<6%（only for copper concentrate） (1) Nickel concentrate ≥10%,sulfur≥20% (2)Nickel matte ≥10%,sulfur ≥20% Pb<0.2%,Zn<0.2%,As<0.2%,Cd<0.3%,Cl<0.5%,MgO +Al2O3<10% CIF Lianyungang port or Wuhan port Trail order:500mt Bulk order:1000mt-5000mt size≤10mm（within 10 mm）