G-First OEIC CO.,Ltd. was founded in January 1999. G-First specializes in the design and manufacture of Optical Communication Instruments. Our products include Ethernet Media Converter Series, Network Management System Series and Interface Converter Series, which can be applied to long reach ethernet, metropolitan wide area networks, subscriber loops and high bit-rate data communications. Our products are widely used by many telecommunication companys such as China TeleCom, China Unicom, China Netcom in China.
G-First has a strong R&D department with technical expertise to deliver high quality products with cutting-edge technology. In 2001, G-First has obtained the international certificate of ISO9001:2000
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