Longhua's water supply management is mainly for the following operations: first, the operation of large houses, bridges, water maintenance in basements, maintenance and various water protection engineering designs. Ii. Construction waterproofing works include: waterproofing of houses, waterproofing of bridges, waterproofing of basements, waterproofing of cavities, waterproofing of tunnels, waterproofing of toilets, waterproofing of external walls, waterproofing of swimming pools, waterproofing of various metal surfaces and waterproofing of concrete surfaces. Leakage works: first, basement, underground garage, swimming pool, toilet, underground tunnel, leakproof water control works. 2. Work on the cracking of the roof, the breach of the wall, the corner of the wall, and the leaking water belt. 3. Cracks, stretches, seams and leaks in the various buildings and underground concrete works. Subway, cable ditches, culverts, sewage treatment tanks, landfills to protect against seepage and leaking water in the water belts from cracks. V. Projects such as reservoirs, fire-fighting pools, pumping rooms, elevator well mines, man-proof passages and leaking projects. Vi. Water reservoir dam slurries, leaks in water delivery tunnel cracks, impermeability, concrete cracks in dames, tunnels, leaks in bridges and water maintenance works. In order for our company to have a proper image of its customers... The company insists that today's corporate approach to the market for tomorrow's services, based on the pre-eminence of the user, is to go outside: for three years, the leak-proofing project that we have built... For three years, if we find a quality problem or if there is a leak in the original leak, the costs of re-engineering will be borne by my company... To spare the user. Leakproofing works for company specialists in new and old concrete construction (facilities on the floor balcony, plant, sews, cavity sews, daughter's wall; leaking of facades on the outer wall, sews on the rain caps, leaks in the window aluminum window frame; leaks in the pipes, zinc iron and steel mills, leaks in the kitchen, leaks in the machine room, leaks in the bathroom, water towers, water pools, basements, swimming pools, etc.) work on roof insulation works, all high-altitude work, such as cleaning of outer walls, cleaning of exterior walls, separation of outer walls and acceptance of all types of high-rise building, painting of exterior walls, leakproofing of exterior walls and cleaning of ultra-high-rise, difficult exterior buildings, painting of different works, etc. Over the course of the day, water-proofing and leakage-proofing materials have evolved as construction skills have evolved. In addition to being of qualified quality, we have tried to build a new generation of high-tech, environmentally friendly goods。