(a) the cbsa brand, which belongs to beijing american materials technology ltd., is a science, technology and innovation enterprise focused on the development and design of high-end wall materials, which entered the field of decorative materials and created the cbsa brand in 2009; he is the director of the china association of building and decoration materials, the association of silicon algae industries. The research and development of trans-silican mosaic products has been further upgraded, and the development and introduction of a new generation of "dan-mima" silican mosaics has improved material hardness, water intake and skin-colored products. By 2017, the country was keen to improve its product system and become a leading firm in the development of industrial products, such as silica mosaics, dry powdered silica mosaics, new grey slurries, and processes to imitate natural high-end high-functional products such as jade, water grinding, and hantonstone. To this end, the u. S. Ha...