As one of the professional China CWDM sfp manufacturers, we are dedicated to producing CWDM sfp of high performance and high precision. Welcome to get in touch with our factory.We will face the opportunities and challenges brought about by the internationalization strategy with a positive and open mind, and continue to focus on the development and innovation of Polarization Maintaining Circulator, reliable 10Gb/s SFP+ BIDI 80km, CWDM-SFP-xxxx.