- Durable stainless steel laboratory standard test screen: 10-100 mesh stainless steel design. The double thickened sieve frame prevents deformation and provides strong corrosion resistance and high strength. Polished edges ensure safe handling. - 20 cm chrome-plated punch frame sieve with 304 stainless steel mesh: versatile for many applications. Suitable for sample inspection, inspection, experimental inspection, traditional Chinese medicine screening and more. - Multiple mesh options: 10 mesh, 12 mesh, 18 mesh, 20 mesh, 26 mesh, 30 mesh, 40 mesh, 50 mesh, 60 mesh or 100 mesh. Each mesh size has its corresponding aperture measurement. - Reliable construction: chrome-plated frame and 304 stainless steel mesh deliver long life, strong corrosion resistance, toughness and durability. - Typical uses: for lab workflows including sample inspection and experimental inspection; for traditional Chinese medicine screening to separate powders; and for other screening tasks requiring precise particle size.