Dailianxu Engineering Co.,Ltd is a powerful and Hi-tech company, which specializes in research and developmenof Optical Fiber Transmission Apparatus etc.Our main products are CWDM, Fiber Optic Patch Cord, PDH Optical Transmitter & Receiver, Optical Fiber Modem, Protocol Converter,Fiber Media Converter, Digital Video Optical Transmitter & Receiver, IP camera, IP video / audio server,