... rotary encoder, potentiometer and switch Passed ISO9001,ISO14001,ISO/TS16949 dual shaft metal shaft rotary encoder dual shaft metal shaft rotary encoder switch We produce rotary encoder, potentiometer and switch.rotary encoder,potentiometer and switch ... TS16949push button switchWe produce rotary encoder, potentiometer and switch.rotary encoder,potentiometer and switch for musical instruments, audios ...