... Diameter varies from 12.5cm to 40cm 4.manufacturer Test SievesMade from first class stainless steel sheet, brass ... , cement, ceramics, pharmacy, metering, etc.Specifications:Standard Sieves and Test Sieves: Diameter: 5cm, 6cm, 8cm, 10cm, 20X5cm, 30X5cm ... , 15X5cm, 20X5cm, 25X5cm, 30X6cm, 40X7cm, 45X7cm, 50X9cm, 60X10cmConcrete Sieve: Diameter: 15cm, 13cm, 17X5cm, 20X5cm.Square Opening Sieves, Round ...