EC21 Buying Leads Catalogs - sulfur supplier

Buy Copper Ore and Concentrate

20140910

Dear supplier, Being one of the largest importer in North West of CHINA, We, Xian runda resource technology company ba

20190305

sulfur≥ 25% （2）copper ore ≥ 10 % （3）copper compound/slag≥ 15% Sulfide or oxide both ok As<0.5%,Cl