影音AV资源站国产理论片精品,亚洲一区二区三区不卡久久,欧美特黄一级大黄录像

After years of R&D and accumulation, our company has broken through the technical fortress of the industry and realized the patented products with independent intellectual property rights, which have been widely promoted and applied in the ultraviolet lamp industry, and have been highly recognized by the industry.The company's products have obtained the national patent certificate, and obtained the high-tech product certificate of Guangdong Province.The company's products are used in the air purification ultraviolet industry, the water treatment ultraviolet industry, the small household appliance ultraviolet industry, and the environmental governance ultraviolet industry.