EC21 Buying Leads Catalogs - tungsten product

We Buy Copper Concentrate

20230920

products,we also need those products:cobalt,tungsten,and precious metals. We have our own big smelting factory,so we n

20221011

We want to import the following products: (1)Copper concentrate≥15%, sulfur≥20%, Pb<6%,As<0.5%,F<0.1%,Cd<0.05%, Hg<