... ISO9001,ISO14001,ISO/TS16949 Rotary encoder potentiometer switch for car used and car manufacturer :We produce rotary encoder, potentiometer and switch ... equipment, Walkie talkie,DVD,GPS navigation,toys ,automotive accessories (car amplifiers) Volume Control ,interphone,sport equipment communication equipment, computer ... ,ISO/TS16949 Rotary encoder potentiometer switch for car used and car manufacturer