... steel,Hardness more than 52 The new product FD series “double vertical ring-die pellet mill”, Research,Design,Produced by ourselves ... reasonable structure and stability,Professional for Wood,Rice husk,Peanut shell,Bamboo and Palm fiber etc.Advantage:Gearbox:Continue the SKJ ... ,Increase press rate then increase capacity,Ring-die is “vertical double-deck”structure,It can use one mould with same hole ...