Vitamin D3 Powder Feed Grade CWS is fine,free flowing,white to yellowish granula,spray dried ... feed grade. Vitamin D3 Powder Feed Grade CWSDescriptionVitamin D3 500 CWS is fine,free flowing,white to yellowish granula,spray dried ... standard Q/H 003-2008Usage:Vitamin D3 Powder Feed Grade CWS is used in feed premixes and aquatic feed.Packing:25kg ... shelf life is 24 months. Vitamin D3 Powder Feed Grade CWS