1.high quality and low price 2.Stainless Steel Filter Mesh Disk 3.Diameter varies from 12.5cm ... Test SievesMade from first class stainless steel sheet, brass sheet and precise stainless steel wire mesh and phosphor bronze wire mesh. Diameter varies ... chemical industry, cement, ceramics, pharmacy, metering, etc.Specifications:Standard Sieves and Test Sieves: Diameter: 5cm, 6cm, 8cm, 10cm, 20X5cm, 30X5cm ...