The water defense union (wac) is affiliated with xuzhou's environmental technology company ltd., a china defense water enterprise that combines the development, production and branding of waterproof materials, and has built and renovated its brand. Over the years, companies have used their vast technological base, advanced production processes and sophisticated equipment to provide high-quality, reliable building materials products and services to users around the world for mutual benefit and win-wins, and they have targeted outsiders for waterproofing materials. The high technological content and quality of water-resistant series products, all of which meet industry standards, enjoy a high reputation in the country. It is also widely used for waterproofing on the floor, waterproofing under the ground and waterproofing in indoor bathrooms, waterproofing in internal and external walls, waterproofing in special buildings, and the construction of a series of different levels of leakproofing works. Waterproofing can also be done directly on the moist base and with multiple colours. All water-proofing products are used in a simple manner and are sprayed directly on the building at a ratio of different buildings. Generatings can penetrate into niches such as buildings or interior floor bricks, jamming micro-pores and cavities into invisible waterproof layers. The series of waterproof coatings is characterized by a combination of green and safe, simple construction and practical durability. It is a complement to building materials that meet the demands of the people's current lives. It combines a range of different levels of work to prevent leakages, such as weather resistance, pollution-free and toxicity-free gas, which are good in a variety of climatic conditions, dry moisture conditions and are widely applied to house waterproofness, underground waterproofing and indoor toilet bathing, internal and external waterproofing, special buildings waterproofing, etc。