ESJ Technology is established in 2015 in Shenzhen,China. We are professional manufacturer focus on RF Microwave Components including Power Divider, Fixed Attenuator, Coaxial Circulator/Isolator, Coaxial Adapter, Directional Coupler, Hybrid, Filter, Cable Assemblies etc which are widely used in military, aerospace, defense, telecommunication, 5G applications etc. With exporting to over 20 countries, we received great feedbacks from our valued customers. Customized products is also available upon customer requests, we are looking forward to working with you.