In this form, nearly half of the world's output of lead is consumed by the electrical industry, either for use as a protective sheathing for cables, or as the cathode plates of storage batteries.
全世界铅产量差不多一半都是制成铅锑合金用于电气工业，不是用做电缆的护套，就是用作蓄电池的极板。
2
Sheathing layer: PVC extruded polyethylene or in the form of weaving.