Negotiable
The date of payment from buyers deliver within days
Zhejiang
Long-term effective
2019-02-18 03:24
536
omter2019(Mr.)
Zhejiang
No.7, Yongxing 3rd Road, Chengdong Industrial Function Zone, Yueqing City, Zhejiang Province, China
http://www.joystick-knob.com/ http://omter2019.gxgreenlife.com/
Knob sharing
The knob is not an invention that changes the world, but it can do things that the keys can't do.
As a mechanical construction, we don’t know which device used the knob first. Maybe a telegraph machine in the last century? Or a oscilloscope? It may also be a radio or a TV later, which is naturally born on electronic devices like many buttons, and then gradually became popular as a part of the audio equipment, and has been used as a controller ever since.
http://www.joystick-knob.com/