Stainless Steel Laboratory Standard Test Sieve, 20 cm diameter, chrome-plated frame with 304 stainless steel mesh, mesh options from 10 to 100. - Key benefit: double-thick screen frame prevents deformation for reliable performance, with a strong, durable construction and polished edges for safe handling. - Wide applications: suitable for sample inspection, testing, experimental screening, and traditional Chinese medicine sieving. - Flexible mesh options: choose from 10, 12, 18, 20, 26, 30, 40, 50, 60, or 100 mesh; each size has its corresponding aperture. - Built to last: chrome-plated frame paired with 304 stainless steel mesh ensures long-lasting use and robust resistance. - Practical use scenarios: material quality control and particle size analysis in the lab; research and development screening; herbal medicine preparation and other laboratory sieving tasks.