2. Sanxin Medical: The main business is the research and development, production and sales of disposable sterile infusion medical devices, and disposable retractable self-destructive vaccine syringes, disposable sterile self-destructive fixed-dose vaccine syringes and other products are dedicated to the injection of various vaccines.
3. Tianhua Super Clean: Tianhua Super Clean is a national high-tech enterprise engaged in the research, development, production and sales of anti-static ultra-clean technology products. It was selected by UNICEF as one of the qualified manufacturers of self-destructing syringes for vaccines, and passed the on-site factory audit of FDA with "0" defect.
4. Wanbangde: Wanbangde Pharmaceutical Holding Group Co., Ltd. (formerly known as Zhejiang Liang Dong New Materials Co., Ltd.) is a diversified group company integrating aluminum processing, nonferrous metal trade and medical devices. He once said on the interactive platform that the company's small-capacity syringes with specifications of 1ml and below can be used for vaccination.