Single-mode Fiber patch cord, which is one of the passive products for optical network construction, is to add LC optical fiber connectors at both ends of an optical cable to realize the quick connection between optical network equipment and equipment, between equipment and patch cord. It is easy to operate, convenient and fast. KTGL can provide all kinds of fiber patch cord products. The transmission mode, optical cable type and connector type can be arbitrarily matched. It has the advantages of stable transmission, high reliability and customization. It is widely used in optical network scenarios such as central office, FTTX and LAN etc.