The plug-in strip is a multi-position socket with a line, also known as a plug-in board or a plug-in strip, the scientific name is a wire extension component or an extension cord socket. A strip refers to a multi-position outlet with a power cord and plug that can be moved. More than one power plug can be connected, saving both space and wiring. The materials used in the high-quality plug-in panels are excellent in terms of flame retardancy, insulation, impact resistance and moisture resistance. The material has strong stability and is not easy to change color. The material selected for the high-quality socket and socket is phosphor bronze, which has good conductivity, good elasticity and long service life.