The full name is copper core PVC insulated twisted connection soft wire, a type of twisted multi-strand flexible wire, commonly referred to as twisted pair wire or 'flower wire'. At this stage, this type of wire is mostly used in fire protection systems, also called 'fire wire'.

1.Mainly used for detector circuits in automatic fire alarm systems.

2.Suitable for household appliances, small electric tools, instruments, and power lighting wires. The double white core is used for directly connecting to the lamp holder wire; the red and blue cores are used for fire alarms and notifications; the red and white cores are used for broadcasting and telephone lines; the red and black cores are used for broadcasting lines.

3.Used to connect amplifiers with audio equipment and to transmit audio signals processed and amplified by the amplifier in broadcasting systems.