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在看布线广告或许多布线组件和布线系统产品目录时,不知情的读者可能会留下这样一种印象,即六类布线的标准已经完成,而且误以为市场上已有许多可满足严格布线规范的布线组件和
When looking at a cabling advertisement or many wiring components and cabling system catalogs, the unsuspecting reader may leave the impression that the standard for six types of cabling has been completed and that there are many on the market that can meet strict cabling specifications. Wiring components and