As an improver of normal PP-R pipe, YOUYI fiber glass reinforced PP-R pipe is composed of 3 layers. The inner and outer layers are made of pure polypropylene random copolymer resin, and its intermediate layer that is made of reinforced fiber resin greatly improves its performance in hot water systems. This newly-typed pipe has higher strength, higher tenacity, higher rigidity and lower linear expansion coefficient. It is a reliable choice for various areas including drinkable water system, solar energy system, heating system.