The difference between black and white carbon film
The carbon diaphragm material of the audiobook is usually black and white.
Then you know that apart from the color,
Do they have any difference in function?
This is a black carbon diaphragm, its disadvantage is that it cannot be bent,
The advantage is that you can do multiple keys on the same page,
The advantage of the white carbon diaphragm is that it can be easily bent,
But the disadvantage is that the number of buttons is relatively limited,
Therefore, we should choose the appropriate carbon diaphragm according to the key design requirements.













