yes. According to the relevant public information, the commodity name of Zhengxing wire is called the national standard BV2.5 square double-color single-stranded copper hard wire of Zhengzhou No.3 Factory, and the quality is stable. National standard wire refers to the wire produced in full accordance with the national standard. The safety performance of this kind of wire is guaranteed to a certain extent when used. General office buildings, libraries and households all meet the standard specifications, and the after-sales service of national standard wire is timely, so it is favored by the majority of users.