HUIDA Ring die is widely used in feed, organic fertilizer, sawdust particles, particle hops, marigold particles etc. HUIDA Company ... alloy steel ring mold, is widely used in feed, organic fertilizer, sawdust particles, particle hops, marigold particles, forage grain and ... long service life. 2. Granular materials form stable, long service life. 3. A new mode on the machine free wash, the material ...