Founded in 1987 , Ningbo Alloys Co.,Ltd.( NINALCO ) has developed from a small township enterprise into the largest manufacturer of Copper-based alloy wires and bars in China . NINALCO comprises of a Brass wires and bars mill , a Bronze and Copper-Nicked wires mill and a Tyre Valve Cores mill . The annual capacity of wires and bars amounts to 9000mt and that of valve cores up to 100 million. Since founded , we never stop up-dating our products and facilities . During the last few years extensive renovations were made by ushering the advanced German processing equipment and sophisticated and analysis instruments from the United States . These new facilities guarantee the mechanical property and precision of our products up to the international standard . Furthermore , our quality control system has been successfully accorded by ISO9002 .At present we are able to supply 4 series of wires