Metal hose product applications: used as a variety of equipment signal lines, transmission wire and cable, optical fiber optical cable protection. Armored fiber optic cable, optical ruler, optical measuring instruments, medical instruments, electrical wire protection tube for machinery and equipment. Suitable for public telephones, remote water meters, door magnetic alarms and other equipment requiring protection of electric wires. Protection tubes for all kinds of fine electric wires. Network cable protection tubes for various computers, robots, etc.