standard test sieve 1:Used for lab or powder filter 2:Mesh:8-635 3:Installing in ... used for screening and filtering granule and powder material in lab.Widely used in abrasive, ground Kan, metallurgy, pharmacopoeia, chemical and ... building materials industry, accurately screening and detect particle. 2.Product Model: Φ200 *50, Φ200 * 25,Φ200*60,Φ300*60,Φ75*40 ...