Is there a certain relationship between the diameter and the number?At this time the tension is probably how much?
Common: 10, 20, 40, 60, 80, 100, 120, 150, 180, 200, 250, 300, 320, 400The maximum number of 1250, but I have not seen, general dry powder, 300 was more difficult to screen it.
For example, 120 mesh screen, that is, in a square inch area, there are 120 holesOther analogies
I've answered another questionGive a simple way to calculate their own
