Wanhai Medicl, located in Changzhou City, Jiangsu Province, China, specializes in the development and manufacture of self-medication injection system solutions. With operations in more than 40 countries and regions around the world, we have cumulatively provided products and services to nearly 100 biopharmaceutical companies. wanhai Medical is focusing on developing and manufacturing high-quality reusable and disposable(prefilled) pens and auto-injectors. Our injection devices are ideally designed for use with insulin, GLP-1, other hormone-based therapies, and monoclonal antibody therapy. Such as Human Growth Hormone (HGH), Glucagon-Like Peptide-1 (Liraglutide, Exenatide, Dulaglutide, Semaglutide), FSH, PTH, etc.