Blood products refer to various human plasma protein products, including human albumin, human placental albumin, human immunoglobulin for intravenous injection, intramuscular human immunoglobulin, histamine human immunoglobulin, specific immunoglobulin, Immune globulin, human coagulation factor VIII, human prothrombin complex, human fibrinogen, anti-human lymphocyte immunoglobulin, etc. The raw material of blood products is plasma, and blood products are made from this part of protein by separation and purification.