The laugh brand belongs to nanjing schmett water protection materials ltd., located in nanjing, the country's transportation hub, and is a professional manufacturer of new types of water protection materials in the country. It brings together scientific research, new product development, new technology services, construction of water protection works, and operates as an integrated high-tech industry group. High-tech industrial enterprises are mainly involved in the development of a series of products, such as new high-tech water-resistant materials. In keeping with the service objectives of "energy conservation and environmental conservation, for the benefit of the people of the land", enterprises have introduced advanced international technology and developed new water-resistant materials for our country, based on their own teams of experts, scientific resources and independent innovation. The series of water-proof products, such as "rain-purity" new nanocracks, jaspels, high-flexible water-preservative paints, water-preservatives, etc., developed by the schmet on their own initiative through their own scientific teams, has received immediate consumer recognition and wide-ranging attention since they were put on the market. Scientific management has always been pursued, standards for the production of water construction materials have been strictly enforced, scientific progress has been made, new products have been accelerated and three industrial systems have evolved, dominated by research and development, production and the construction of projects to prevent water leakage. Laughing water-proofing brands, industrial base, high iron, subway tunnels, bridges, interior and outer walls of highways and civilian buildings, ground, etc. The core business model, which precedes peer roll-out, allows for a large number of ambitious individuals to follow the self-procurement model of equipping headquarters to supply raw materials, thus facilitating the control of a three-tier jump and the sale of high- and low-sale items. The water-proofing industry is increasingly visible and market shares are growing year by year; the acceleration of urbanization has led to an increase in demand for water-proof materials over the years; water leaks in various buildings are growing, and water-proofing in buildings is becoming more important。