... ,TOYOTA,HONDA SONY,TCL.etc 3.Passed ISO9001,ISO14001 potentiometer with switch for musical instruments, audios,medical equipment, Walkie talkie,DVD ... ,TOYOTA,HONDA SONY,TCL.etcPassed ISO9001,ISO14001,ISO/TS16949 potentiometer with switch for musical instruments, audios,medical equipment, Walkie talkie,DVD ...