... ISO9001,ISO14001,ISO/TS16949 Rotary encoder potentiometer switch for used car and car manufacturer : We produce rotary encoder, ... ,toys ,automotive accessories (car amplifiers) Volume Control ,interphone,sport equipment communication equipment, computer /multimedia peripheral products, VCD players ... quality, long rotary life For VOLKSWAGEN,TOYOTA,HONDA SONY,TCL.etcPassed ISO9001,ISO14001,ISO/TS16949