*** Demand for the Raw Material(Copper Scraps) The melting shaft furnace and holding furnace require National Grade One copper cathode as their raw material. 1. Copper scraps of Grade One ( Pb< 100Sn< 300Ni< 50Zn< 50Fe< 50Sb< 20). Composed of clean, non-alloy copper wires without tin-plate, which mustn't include frangible burnt wires. 2. Copper scraps of Grade Two( Pb< 1000Sn< 800Ni< 150Zn< 300Fe< 500Sb< 100S< 200). Composed of small diameter copper wires, which are not insulating, such as the telephone wire, varnished or paper insulating copper wires and copper plate, and clean copper bars. 3. The proportion of the raw material sent to the furnace is as follows: 60% copper of Grade One +40% copper of Grade Two. Add to Basket
