2, the product is single. There are only "anti-snake venom series products", "immunoglobulin" and "anti-rabies serum".
3. There are few invention patents in China. At present, Salem Bio owns 8 domestic authorized invention patents, while the total invention patents of Hualan Bio, Tiantan Bio, Shanghai Laishi and Weiguang Bio all exceed 17, and Hualan Bio owns 60 invention patents.