... more than 52 The new product FD series “double vertical ring-die pellet mill”, Research,Design,Produced by ourselves,With alone ... time,The main function is dedusting and discharge steamWorking parts:Ring-die and rollers materials are alloy steel,Heat treatment made ... and density,The special design is 4 rollers working,Increase press rate then increase capacity,Ring-die is “vertical double-deck”structure ...