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There are many types of cables, but when making a choice, one ends up at a crossroads, and figuring out how to choose becomes a difficult task. Next, Jingbo Cloud Commerce will explain to you how to choose the cable that is suitable for you. 1) Flame-retardant wires are commonly used in industrial and mining enterprises as well as hotels. The main feature of flame-retardant wires is that they are difficult to catch fire, or if they do catch fire, the spread of the fire is limited to a certain area. Suitable for applications with high requirements for flame retardancy. 2) Based on the flame retardancy level, they are classified as ZA, ZB, and ZC; for home use, copper cores of ZR and ZC grades can be selected. High-precision oxygen-free copper, with low resistance and consistently stable electrical conductivity. 3) The model for fire-resistant wires is denoted by NH before the regular type designation. The main feature of fire-resistant wires is that, in addition to being able to transmit electricity under normal operating conditions, they can continue to function properly for a certain period of time even when on fire, making them suitable for applications where fire resistance is required. 4) For low-smoke, halogen-free flame-retardant wire models, WDZ is added in front of the regular model designation. Such wires not only possess flame-retardant properties but also exhibit low smoke generation and reduced hydrogen chloride emission; they are suitable for applications where certain requirements exist regarding the level of smoke produced by the cables as well as the amount of hydrogen chloride released. Finally, I would like to remind everyone that the insulation layer should be made of environmentally friendly PVC material, which must exhibit good performance in terms of wear resistance, corrosion resistance, aging resistance, and flame retardancy.