... in graininess.2..The use of advanced special chute, smoothness, abrasion resistance, resistance to wear and tear, corrosion resistance better. At the same time the ... 4.high frequency ejectors have the good performance in blowing the impurities away.longer life, the service life of up to ... of light green, light yellow, and small change of the same color;3.Flat chute with high density ejecting system ...