This production is use for produce different diameters of PP-R pipe . This production is use for produce PC pipe. PP-R Features: Sanitary and nontoxic, environment friendly; Erosion-resistant, no precipitate; Long service time, 50 years(-2095); good pressure resistance, can bear max. 32kg/cm2; Excellent low temperature resistance, it will not break under the environment of temperature -20; Good ...