... : galvanized wire, stainless wire mesh, nylon silk screen, stainless steel, copper, and alum.2.Characteristics: ... 8cm, 10cm, 20X5cm, 30X5cm,Sub-sample screen, Chinese medicine sieve, grain selection screen:Diameter 10X5cm, 15X5cm, 20X5cm, 25X5cm, 30X6cm, ... 40X7cm, 45X7cm, 50X9cm, 60X10cmCement screen: 15cm, 13cm, ...