At present, the shielded category cables use single or double copper braid as shield, which features low productivity and high costs.
目前使用的屏蔽数据通信电缆通常为单层或双层铜丝编织结构，生产效率低，成本高。
2
In addition, the invention also relates to a knitting method and special tools (crochet hook assemblies) for the double-layer half-moon-shaped solid cored ray flower braid.