PP -R管是一种新型的塑料冷热水供水管 ,其优越性能已越来越得到社会的认可。由于市场竞争的不规范 ,加上个别生产企业乱用原材料 ,致使市场上产品质量良莠不齐 ,这不仅损害了消费者的利益 ,同时对PP -R管的信誉造成不良影响。介绍了PP -R管的原料性能以及影响质量的因素 PP-R pipe is a new type of plastic hot and cold water supply pipe, its superior performance has been more and more recognized by the community. Due to the non-standardization of the market and the indiscriminate use of raw materials by individual manufacturers, the quality of the products on the market varies greatly. This not only damages the interests of consumers but also adversely affects the credibility of PP-R pipes. The properties of raw materials and the factors affecting the quality of PP-R pipe are introduced