Electrolytic copper cathodes are melted in the atmosphere controlled shaft furnace, and transferred into Southwire casting machine via the launders and the holding furnace. Copper bar, which is cast by the control of automatic metal pouring system, is then hot rolled to wire-rod with various diameters of 8 mm (5/16"), 11 mm (7/16") and 16 mm (5/8"). Followed by hot rolling, the wire-rod passes through the pickling line for surface de-oxidation, cooling and brighthening, and then is packed into coil form to be ready for shipment.

Related Standards: ASTM B49, EN 1977