... roller rotating, materials centrifugal, Evenly distributed around.3.Double-layer dies, up and down dual-use, reduce the cost,enhance ... centrifugal and distributed around evenly: using a unique double-layer high rebounding-effect die,naturally and evenly distribute in the ... When pelletizing good bonding materials, can heighten the rollers and two-layer dies to reach four-fold capacity. No flat die, ...