... classifying, powders of ball shape, flake shape and needle shape, also powders with different densities.• Product size from ... d97: 2micron to 150micron. The product size is adjustable, which makes the change of product size easy and simple.• Classifying ... , kaolin, quartz, talc, mica and other non-metallic product classifying), metallurgy industry, abrasive material industry, ceramics industry, ...