spiral ribbed pc steel wires 螺旋肋预应力钢丝
pc wires
电脑线
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Now many, many new network installations are using Power-Over-Ethernet so you can run a phone, you can run a PC, a security camera all over these blue wires.
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