Ring die 1. widely used 2. high resistance 3.all stainless steel or alloy steel 4.maximum productivity HUIDA uses advanced processing technology ... , Manufacture of all kinds at world pellet mill, Quality ring die, roller, empty shaft, gear shaft, large gear, drive wheel, clamps ... ,Buhler,Taiwan,DPAA,VANAARSEN etc. HUIDA Feed Machine Spare SS Die Size 520