Hangzhou Shengtong Technology Co., Ltd ( CenRF ). is a professional manufacturing & system integrator supplier of mobile network coverage & optimization solution in China. We supply and manufacture: repeaters, passive components and antennae: Repeater, Fiber Optical Repeater, Inline Booster, TMA, MCPA, Amplifier; Power Splitter, Directional Coupler, 3dB Hybrid Coupler, Combiner, POI, Duplexer, Triplexer, Dummy Load, Attenuator, Isolator, Cable, Connector; Antenna. System integration: Design and optimization of mobile network, Turnkey and Subcontractor. CenRF Communications, with a team of 15 years' experience, focuses on optimization and coverage of mobile networks. We have provided products and solutions for operators in China, Southeast Asia, the Middle East and North America. Our products and services support all mobile/cellular systems of IDEN, Tetra, CDMA, GSM, DCS, PCS networks as well as 3G and LTE, and support the cellular networks' data transmission technologies of GPRS, EDGE, HSDPA, HSUPA, 1X EV-DO, etc. We help customers to target cost-effective and high reliable mobile/cellular system. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success.