test sieve 1.Accurate mesh screen 2.Screen frame exquisite and durable, with no leak tight 3.Smooth surface, durable shape sieve 1.Accurate mesh screen 2.Screen frame exquisite and durable, with no leak tight 3.Smooth surface, durable shapeThe standard test sieve is always used in test particle size.Frame diameters are avaliable as Φ200mm and Φ300mm.Aperture sizes are as per 38μm, 45μm, 53μm, 63μ ...