... suitable for grading screening.3.Usage: Screening mesh product is used in metallurgy, liquor, pharmaceutical, chemical, agricultural, food, cement, ... coal, geology, scientific research, etc. 4.Packaging:in box or weaving bag/ or as your required5.Specification: ... 8cm, 10cm, 20X5cm, 30X5cm,Sub-sample screen, Chinese medicine sieve, grain selection screen:Diameter 10X5cm, 15X5cm, 20X5cm, 25X5cm, 30X6cm, ...