The thickness of the general model is not the same. Reference for you: Models with big thickness: 16 mesh, 24mesh, 36 mesh, 40 mesh, 50 mesh, and 60 mesh. Commonly used models: 80, 100, 120, 150, 180, 220, 280, 320, 400, 500, and 600 mesh. Models after fine grinding: 800, 1000, 1200, 1500, and 2500 mesh. Currently there is very few sandpaper with the model of 3000 mesh in domestic ! It is usually indicated by "granularity".
It can be specifically divided into 150 mesh, 180 mesh, 240 mesh, 360 mesh, 400 mesh, 500 mesh, 600 mesh, 800 mesh, 1000 mesh, 1200 mesh, 1500 mesh, and 2000 mesh.
Sand paper can be specifically divided as follows: 150 mesh, 180 mesh, 240 mesh, 360 mesh, 400 mesh, 500 mesh, 600 mesh, 800 mesh, 1000 mesh, 1200 mesh, 1500 mesh, and 2000 mesh. Namely 150cw, 180cw and so on. The larger the mesh, the smaller the particle which means the sand paper is finer.
