A: High capacity, stability, stability performance. B: Economy index is higher than small-sized factory. This series include:Model 70T,80T,100T,120T,160T,200T,250T,300T ,400T,500Tect Instructions -- Our company has developed and manufactured the pneu-preussure roller mill, square sifter, self-vibrating sieve, horizontal wheat scourer, plane rotating sieve, gravity classification sieve, suction ...