... 28,φ30,φ35,φ40,φ455. Usage: Used in medicine, mineral, machinery, food, metal metallurgy, vibrating screen, etc. In vibration in the industry ... as: linear vibration vibration sieve spin in the screening of food industry often with silica gel ball materials without rubber ball ... order to ensure the production of green environmental protection of food. 6.performanceSilica gel ball is a kind of wear- ...