铜包钢电话用户通信线的研制

The Development of Copper clad Steel Wire for Telephone users

介绍铜包钢芯线生产的设备研制和工艺研究，应用其设备和工艺能生产出合格的电话线。

This paper introduces the equipment design and the technology study in producing copper clad steel wire. Using the equipment and the technology, we manufactured the qualified telephone wire.