Vertical motor Blower system Ring-die and rollers materials are ... Hardness more than 52 The new product FD series “double vertical ring-die pellet mill”, Research,Design,Produced by ourselves,With ... working,Increase press rate then increase capacity,Ring-die is “vertical double-deck”structure,It can use one mould with same ... 1.45*2.18500 2012 new product FD series double vertical ring-die pellet mill