It is well known that corrosion between different metal bodies is caused by the potential difference of metals. As the material for producing stainless steel pipes, it inherently has a tendency for stress corrosion. When stainless steel pipes are welded or connected to other metal components such as valves, water pumps, and faucets, electrochemical corrosion occurs immediately, significantly reducing the overall service life of the pipeline system.

The non-metallic (potential-free) connectors used in the Curved Elastic Vector Aluminum Alloy Plastic-lined Composite Pipe do not cause "electrochemical corrosion." The surface of the pipeline system is treated with aerospace-grade special anti-corrosion technology to form a dense oxide layer. The inner lining is made of non-toxic, pollution-free, green, healthy, and environmentally friendly food-grade PERT/PPR material, offering long-term corrosion and rust resistance far superior to traditional stainless steel pipelines.

Through the prestressed composite technology of the pipeline system, precise preset parameters are designed to perfectly combine two different extension materials—seamless aluminum alloy pipe and thermoplastic plastic pipe—without altering the physical properties of either material. This solves the compatibility issues of thermoplastic and aluminum alloy pipes in composite structures while maintaining sealing and achieving ideal interlayer bonding strength. As a result, the Curved Elastic Vector Aluminum Alloy Plastic-lined Composite Pipe exhibits stable performance in cold shrinkage and thermal expansion in application environments.

Each Curved Elastic Double Fusion Fitting is equipped with heat fusion socket depth positioning marks on its surface, significantly improving installation efficiency and ensuring installation quality. During heat fusion socket operations, simply aligning with the heat fusion socket positioning marks on the surface of the Curved Elastic Double Fusion Fitting allows for marking the "fusion depth positioning line" and "socket depth positioning line" on the pipe surface, eliminating the need to check socket depth data or use a ruler. This improved installation method effectively prevents welding quality issues caused by excessive or insufficient socket insertion and greatly enhances installation efficiency.