Industrial casein is produced from nature Yak milk by the new Bio-technology. It is a very useful material and in many fields it can not be replaced by others. Now we can produce it in 3 grade: Grade A, Grade B, and Grade C. Based on the good capability in agglutinating, filming, Polishing, emulsification and stabilization. it is a perfect stickiness material in ifferent applications.Mesh size: 20M, 30M,60M and 90M