About Us


Wanhai Medical Instruments Co., Ltd. is a leading solution provider and manufacturer of injection systems for self-medication located in Changzhou City Jiangsu Province China. With a plant area of 12000 square meters, Wanhai Medical's business covers more than 20 countries and regions, we are supplying our products and services to dozens of well-known pharmaceutical companies all over the world. 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, peptides, other hormone-based therapies, and monoclonal antibody therapy such as Human Growth Hormone (HGH), Glucagon-Like Peptide-1 (GLP-1, Liraglutide, Exenatide, Dulaglutide, Semaglutide), Follicle-Stimulating Hormone (FSH), and Parathyroid Hormone (PTH), etc.



• Focus on the R&D and manufacturing of pen injectors

• Own independent intellectual property rights to ensure global market promotion

• Competitive pricing to meet increasingly cost-sensitive pressure

• Complete set of production facilities, including high-precision electric injection molding machines, laser printers, automatic assembly lines, and professional testing laboratories

• Experienced professional R&D team, provides development and customization service according to the personalized needs of customers.

• Customization support in packing design, logo marking, color scheme, etc.

• ISO13485/CE/NMPA registration certificate and dozens of third-party experimental test reports.

• 3-year quality assurance and life-long maintenance


As a proactive partner, we provide high-tech products and customized services, and quickly adapt to the changing market demand. We assess user needs, constantly promote innovation, and place patient comfort and customer needs at the core of our approach. If you have any questions, please feel free to contact us and look forward to creating the future together.