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KVVR與RVV有什么區別？
很多人分不清楚KVVR與RVV，從型號上看，絕緣護套均采用PVC（聚氯乙烯）；如果比對樣品，從外觀看，也感覺沒有很大區別。其實它們也是有不同點的，那KVVR與RVV有什么區別？這里簡單介紹它們的
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