Joysbio(Tianjin) Biotechnology Co., Ltd. is a Chinese R&D-based biotechnology company that develops, manufactures, and supplies high-quality medical in-vitro diagnostic (IVD) rapid test kits as well as revolutionary customized solution kits to all parts of the world. Founded by a team of professionals with many years of combined technical,marketing/sales, operational and manufacturing expertise in this industry, we offer high quality but cost-effective rapid test kit. We are appreciate your attention Our main product are: SARS-CoV-2 Antigen Rapid Test Kit (Colloidal Gold) (Saliva and nasal swab ) Our advantage : We export to 60 millions tests to  the European markets we have accumulated rich experience .