Summary: PP-R (random copolymer polypropylene) is a third-generation polypropylene pipeline specific material, also known as type III polypropylene. It overcomes the disadvantages of homopolymer polypropylene and block copolymer polypropylene, with good impact resistance, long-term thermal performance, and longer service life under the same temperature and internal pressure conditions. Through experiments, it has been confirmed that PP-R pipes have a service life of up to 50 years when transporting hot water at 70 ℃ and an internal pressure of 1MPa, making them an ideal pipeline product. Adopting