Introducing our SARS-CoV-2 Neutralizing Antibody Rapid Test (colloidal gold). As a reputable factory, we pride ourselves in producing high-quality medical devices. Our test kit employs advanced colloidal gold technology to detect and quantify neutralizing antibodies against SARS-CoV-2 efficiently. With accuracy and rapid results, this test is crucial in assessing an individual's immune response to the virus. Trust our expertise as we continue to contribute to the fight against COVID-19.