When urbanization shifts from "incremental expansion" to "stock renewal", the health of the city's "underground blood" - the pipe network system has become a key factor restricting the improvement of urban quality. The old pipe networks in many cities are still using metal pipes or concrete pipes from decades ago, and the problems of leakage, corrosion and blockage are frequent: in the rainy season, the community accumulates water into "Zeguo", sewage leaks and pollutes the soil, and the pipe network maintenance frequently affects the lives of residents... These "underground hidden diseases" urgently need a more durable, flexible and environmentally friendly pipe network material to solve. And the HDPE carat pipe (flexible winding structure wall pipe) of AD pipeline is the "optimal solution" for the upgrade of the pipe network in urban renewal. The "hard core strength" of

HDPE carat pipe stems from its precise solution to the pain points of traditional pipes. The first is "corrosion resistance" - it is made of high-density polyethylene and has strong chemical stability. It will not leak due to rust like metal pipes, nor will it be corroded by acid and alkali substances in sewage like concrete pipes. It can maintain a "healthy state" even in complex soil environments. The second is "flexible adaptability" - the design of the wound structural wall makes the pipe have excellent flexibility, which can adapt to external changes such as urban foundation settlement and road heavy load, and avoid the common "cracking" problem of rigid pipes. For example, in the road renovation of a soft soil foundation, the HDPE carat pipe successfully responded to the slight settlement of the foundation with its flexible characteristics without any damage.

More crucially, the "construction friendliness" of HDPE carat pipes fully meets the "efficiency needs" of urban renewal. Traditional pipe construction often requires "disemboweling" excavation, which not only affects traffic and residents' lives, but also prolongs the project cycle. HDPE carat pipes support trenchless construction (such as directional drilling, pipe jacking). Only a small number of working holes on the ground can be opened to complete the pipeline laying, and the construction period can be shortened by more than 50%. For example, in the renovation of the drainage pipe network in an old community, after the use of HDPE carat pipes, the construction team completed all the laying in only two weeks, and the residents were hardly affected. After the renovation, the problem of water accumulation in the rainy season of the community was completely solved.

Urban renewal pursues the long-term value of "once and for all", and the "super long life" of AD HDPE carat pipes just meets this. Its service life can reach more than 50 years, which is twice that of traditional concrete pipes and three times that of metal pipes. A single laying can cover the development needs of the city in the next few decades. At the same time, HDPE materials can be recycled 100%, in line with the green construction concept under the "double carbon" goal, so that urban renewal is not only "fast", but also "sustainable".

In multiple scenarios of urban renewal, the HDPE carat pipe plays a "central role": in the renovation of old residential areas, it solves the problem of "last mile" drainage blockage; in the rain and sewage diversion project of municipal roads, its large-diameter design (up to 3000mm) meets the demand for surging rainwater; in the upgrade of industrial parks, its durability supports the long-term production needs of enterprises. For example, in the pipe network expansion project of a manufacturing park, after adopting the HDPE carat pipe, it not only solves the corrosion problem of the original pipe network, but also reserves space for the expansion of production capacity in the next five years, becoming an important guarantee for the "industrial upgrade" of the park.

Urban renewal is not a "face project", but a "lining project", and the pipe network system is the "lining" of the city. As a "key material" for pipe network upgrade, HDPE carat pipe has injected "underground toughness" into urban renewal with its characteristics of corrosion resistance, good flexibility, fast construction and long life. From the "drainage freedom" of old residential areas, to the "rain and sewage diversion" of municipal roads, to the "capacity guarantee" of industrial parks, HDPE carat pipe is becoming the guardian of urban "life infra", making urban renewal truly "grounded" and "effective", and creating a more comfortable and safer living environment for residents.