Kingtronics International Company is a manufacturer since 1990 based in HK with ISO9001 approval in 1996. Since the first factory established, we have been producing trimmer potentiometer 3296 3266 3386 3590 3329 3323 3006 105H…. For the past 20 years. After years' development, now Kingtronics produce high quality multilayer ceramic capacitor and tantalum capacitor.