Fullangshi Nanotechnology focuses on the research and development of metal nanomaterials and their applications. In 2020, as the COVID-19 pandemic swept the globe, the demand for masks became extremely urgent. With the virus mutating and becoming more contagious, ordinary isolation and protective masks could no longer meet people's needs, leading to the emergence of functional masks with antibacterial properties. Our company has developed a nano antibacterial coating device, offering a nano mask solution. By simply adding the nano antibacterial coating device at the front end of the existing mask production line, an ordinary mask production line can be upgraded to a nano mask production line, maintaining the same output while upgrading the product.