Introducing our {COVID-19 Antigen Rapid Test Kit (Colloidal Gold)}! As a factory, we pride ourselves in developing this highly reliable and efficient product. Our test kit utilizes advanced colloidal gold technology to rapidly detect COVID-19 antigens with accuracy and precision. With a simple procedure, results can be obtained within minutes, allowing for quick and effective diagnosis. Trust our factory expertise in producing a top-notch COVID-19 testing solution to safeguard your health and that of the community.