IgG15% IgG20% IgG25% IgG30% IgG40% It is the bovine colostrums raw material that be made by defatted, sterilization microfiltration, ultrafiltration, electric pulse sterilization, spray drying equipment.Features: immune globulin with high activity, having good mobility and good instant .according to the customers’request,we can provide products with different particles and different IgG content. ...