We Are Ctc Technologies, Which Specialize In Used Test Equipments, Such As Spectrum Analyzer, Network Analyzer, Signal Generator, Wlan Tester, Power Meters, Signal Analyzer, Power Supply, Rf/wireless Communication Test Set, Bluetooth Tester, Shielding Box, Oscilloscopes And So On Which Are Made By Agilent, Anritsu, R&s , Advantest, Tek Etc.Main Office Is In Tianjin, China. We Also Have Offices In Shenzhen And Hong Kong. we Have Been Exporting Models Worldwide For A Long Time. Our Equipments In Good Condition And Competitive Price Will Not Make You Disappointed.