pvc insulation layer
聚氯乙烯保温层
以上为机器翻译结果,长、整句建议使用 人工翻译 。
What's more, the unqulified wire seems thick on the insulated sheath, the fact is they are made from recycled pvc, the insulation layer will aging and creepage after a period.
另外,伪劣电线绝缘层看上去似乎很厚实,实际上大多是用再生塑料制成的,时间一长,绝缘层会老化而漏电。
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