A throat swab is a device used to collect samples of nasal secretions from the back of the nose and throat. The samples were then analyzed for the presence of biological or other clinical markers of disease. In recent years, the COVID-19 has been repeated, which requires a large number of this product to be put into the market. The medical industry has a more urgent demand for this kind of packaging machine, and needs sealing machine and stretching film machine with fast speed and convenient maintenance.
By providing a barrier between the skin and the environment, it can protect the skin and the environment from elements, rough surfaces, sharp stones, plants causing rashes, and insect bites. Clothing can insulate from cold or hot environment. It can provide a sanitary barrier to keep infectious and toxic substances away from the body.