What are the benefits of PE water pipe drawing?

What are the advantages of PE water supply pipe stretchability for PE water supply pipe stretchability, but what are the benefits of PE water supply pipe stretchability? So here's a brief description of the benefits of stretching.

Polymers possess the widest range of variability among all known materials, which is attributed to the apparent relaxation of molecular motion due to the composition of long chain molecules. For example, the elongation at break of general PE is 90%-950% if the polymer material has a fairly high elongation. Through special manufacturing process, the elongation of some materials can be more than 1000%, while the elongation at break of ordinary polymer material is more than 50%-100%. Heat shrinkable films and stretching films are usually required for high tensile properties of materials.