1. Main lines typically use power cables (such as VV and YJV; low-smoke, halogen-free, and environmentally friendly branch cables are now commonly used), and household installations typically use electrical wiring (such as BV, RV, BVVB, and BVR).
2. Security systems use RVV, RVVP, SYV, and SYWV cables, network cables, and optical cables, etc.
3. Power cables such as VV and YJV cables, installation wiring (BV and BVVB), security system cables such as RVV, RVVP, SYV, and SYWV cables, network cables, and optical cables, etc.
