1, the production process is different: the genetically engineered hepatitis B vaccine of Dalian Hanxin Biopharmaceutical Co., Ltd. is "recombinant hepatitis B vaccine (Hansen yeast)", and the genetically engineered hepatitis B vaccine of North China Pharmaceutical Jintan Biotechnology Co., Ltd. is recombinant hepatitis B vaccine (CHO cell).
2. Different brands: Aimeihanxin Vaccine Company is located in Dalian, China, and mainly produces hepatitis B vaccine. North China Jintan is a biological product produced by North China Pharmaceutical Jintan Biotechnology Co., Ltd., a recombinant hepatitis B vaccine.