The copperclad steel contact wire used for high-speed railway of trains is developing in China.
铜包钢接触线属于高速铁路建设急需的产品，该产品的制造在中国尚属起步阶段。
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Based on the production of copperclad steel wire, the characteristic of inversion casting is introduced, and the rule of parameter influencing cladding specific value systematically value studied.
This paper introduces the equipment design and the technology study in producing copperclad steel wire. Using the equipment and the technology, we manufactured the qualified telephone wire.