Zhejiang Hangzhou Jiande Xihu Electronic Equipment Factory main products are power strips, power socket, extension cords.Power strips are the strips of sockets that attach to the end of a flexible cable and allow multiple devices to be plugged in. A power socket is device for removably connecting electrically-operated device to the commercial power supply. Extension cords are the length of flexible electrical power cables with a plug on one end and one or more socke.