Flexible Flat Cable(FFC) can be arbitrarily selected the number and spacing of wires, so that the connection is more convenient, greatly reduce the volume of electronic products, reduce production costs, improve production efficiency, and is most suitable for the data transmission cable between moving parts and the motherboard, between PCB board and PCB board, and in miniaturized electrical equipment. At present, it is widely used in the connection between various printer printheads and motherboards, plotter, scanner, copier, audio, LCD electrical appliances, fax machines, various disc players and other products signal transmission and board connection. In modern electrical equipment, almost nowhere. Common specifications are 0.5mm, 0.8mm, 1.0mm, 1.25mm, 1.27mm, 1.5mm, 2.0mm, 2.54mm and other spacing flexible cable lines.