... potentiometer and switch. Passed ISO9001,ISO14001,ISO/TS16949. Antenna for Mobile phone: We produce rotary encoder, potentiometer and switch ... .rotary encoder,potentiometer and switch for musical instruments, audios,medical equipment, Walkie talkie,DVD ... and household appliances.High quality, long rotary life For VOLKSWAGEN,TOYOTA,HONDA SONY,TCL.etcPassed ISO9001,ISO14001,ISO ...