... shapeaa rollers make their ends rounding linear speed consistent with flat die, so it avoide dislocated friction whi IntroductiongOur company ... successfully invent SKJ-3-4 series Taper-shape rollers and flat die pellet mills, which are specially fit for biomass, ... shape” rollers make their ends rounding linear speed consistent with flat die, so it avoide dislocated friction which maybe created ...