... Accurate mesh: Screen cloth conforms to ISO3310:1990, ASTM, TYLER, JIS, DIN, BSI and subjects to tool microscope and ... 1:1990 R20/3,R20,R40/3 series, ASTM, TYLER, JIS, DIN, BSIISO3310-2:1990 R20/3,R20, ... R40/3 series, ASTM, TYLER, JIS, DIN, BSIISO3310-3:1990 R20/3,R20, ... R40/3 series, ASTM, TYLER, JIS, DIN, BSISpecificationSieve Diameter(mm)Φ75/ Φ100/ Φ127/ ...