- The shell is made of metal with smooth surface and is not easy to rust. - Simple shape, long service life. - Simple internal structure, easy to operate, easy to install and use. - Good handle, giving a high quality, high-grade feeling.- Industrial control equipment: such as machine tools, automatic production lines and other industrial machinery equipment. - Household appliances: such as TV, washing machine, oven, microwave oven, etc. Electronic equipment: such as computers, monitors, mice, scanners, printers, etc. - Communication equipment: such as mobile phones, telephones, routers, switches, etc - Automotive electronics: such as on-board navigation, air conditioning, etc - Medical instruments: such as electronic sphygmomanometer, ventilator, etc.