... : vitamin B4, Corn Cob, choline chloride manufacture, choline chloride factoryCharacter: vitamin B4, Corn Cob, choline chloride manufacture ... ≤300PPMAnalytic methodHG/T2941-2004Function: vitamin B4, Corn Cob, choline chloride manufacture, choline chloride factoryGenerally ... B4, Corn Cob, choline chloride manufacture, choline chloride factory choline chloride 50% - 60% feed grade (Corn Cob carrier)