ZF Vibro-sifter : 1.Continous production,auto grading ,sieving 2.low noise. 3.Enclosed ,no dust fly 4.Small size,easy instal ZF Vibro-sifter :1.Continous production,automatic grading ,sieving2.low noise3.Enclosed structure,without overflow of power dust4.Fast start-up,and very stable stop5.Small cubage,easy to install,convenient to operate and maintain.6.the series screen with high usage rate,its ...