1. Filter rate: 25microns to 850micorns. 2. resistance to corrosion, high temperature, etc. 3. 20 years ... and sifting kinds pellet ,grain,porcelain earth and glass, chinaware printing, filter liquid, etc. 2.Width: 0.914M, 1M ... 1.5M, 36'',40'',48'',60''3.Length: Length/roll:30M.25ft,50ft,100ft,4.Weaving methods: Plain weave, ... .12550400400.180 51850200.450 43 copper screen roll (20mesh to 500mesh)