200 mm 300 mm stainless steel lab test sieve The standard Testing sieve is made for the purpose of particles size distribution measurement, the determination of impurity content or solid content in liquid, which are extensively used in scientific laboratories and quality inspection departments. Advantage: The mesh aperture is uniform and accurate, in accordance with ASTM / ISO3310 standard No leak material, There is no welding joint on the frame Materials stainless steel 304 316 316L, copper brass Color silver, brass Standard GSG GB ISO Mesh number &nb…