Test sieve sieve box is a device mounted on a standard test sieve machines, circular, with a diameter of 200mm and 300mm two national standard test sieves, the widespread use of screening tests is 200mm manufacturer, but some users have special requirements There's also 75mm. Mesh sieve box by 8 mesh to 500 mesh are, the greater the standard test sieve mesh, the smaller the hole, and therefore, according to the size of the mesh, there are perforated plates and two of wire braid. The number is small perforated plate, is a large number of wire braid. Also useful to indicate the size of a few millimeters of the screen frame, it is only another way of saying, can be converted between both. Test sieve is a material particle size grading, particle size measurement tools. It is tested by the designated agency, appraisal, considered to meet the agreed sieve. This is it different from the general screening tools are an important symbol. Test sieve mesh size strict regulations, test sieves with mesh size specifications represent each sieve, mesh size corresponds to "eye", but not equal to "mesh." Test sieves Test sieves supplier _ _ Inner Oswald Chen Xinxiang machinery provided by Oswald Chen Machinery Co., Ltd .. Oswald Chen Xinxiang Machinery Co., Ltd. (www.oweicjx.com) strong, credible, Xinxiang in Henan and other transportation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Oswald Chen mechanical and you hand in hand into the brilliant, for a better future!