Analyze the reasons for the unqualified wires and cables for everyone：
Marking is the main way for wires and cables to identify the basic information of products. According to standard regulations, the main content of the mark is: product model, specification, standard number, factory name, place of origin, etc. within a certain mark interval. When the mark is unqualified, it will cause the construction personnel's identification error, and in serious cases, it may cause electrical accidents.
