The United States 3-A is a non-profit voluntary organization (referred to as 3-A SSI), which is committed to promoting the hygienic design of food production equipment, beverage production equipment, dairy equipment, and pharmaceutical industry equipment. It mainly promotes production equipment to contact media Health and safety. We have obtained the certification of 10 series of products of 3-A organization. So far in the field of pump and valve, we are the Asian company who has passed the most certification of this organization, covering ≈ 80% of series products. Homogeneous pump series certificate: 3-A-36-01-N.O. 3751, specifically covering: multi-stage homogeneous pump, single-stage homogeneous pump, homogeneous mixing pump, etc.