An instrument for determining the mesh number of a sieve
Mesh and how to choose the sieve mesh is what relationship. Materials through the area of a mesh, how many mesh is defined as: 200 mesh, for example, is that the material can pass 1 square inch with 200 mesh sieve. 100 mesh, for example, is that the material can pass 1 square inch with 100 mesh sieve. 50 mu, for