... )-Fineness: adjustable between d50: 2micron and 15micron -Suitable for medicine, mineral, chemical, fine material, noble metal, etc ... )- Fineness: adjustable between d50: 2micron and 15micron -Suitable for medicine, mineral, chemical, fine material, noble metal, etc ... material, high production efficiency, and is the best choice for drugstore, hospital, institute, laboratory and family. Labrotory ...