Sieve specification:10*5cm 20*5cm,etc hole size:1mesh to 500mesh up to your requirements Sieve Sieve,vibrating screen as well as sifter are our main product. 1. Attractive and durable 2. Wear-resistant 3. Accord with GB6003.1-1997 standard and ISO3310-1:1990 R20/3,R20,R40/3 series 1. Featureseasy to use, attractive and durable, high precision, wear-resistant, heat-resistant, suitable for exact ...