... easy to repaired. 3. fully closed structure, no dust. Rectangular sieve:screen makes use of the vibrating motor as the ... materials forward at a straight line, multi-layers screen net can be used to sieve kinds of the fine ... 2)Long residence time of the materials on the screen net bring a large processed quantity. 3)When been screened, ... 8,fodder 9,fertilizer 10,fire works, 11, others Rectangular sieve