pipe coupling 1, PPR material; 2, Different size and colors available; 3, High quality; 4, CE, ISO 9001 and PICC are approve 1, Size: φ20, 25, 32mm;2, PPR material;3, High temperature and pressure resistance;4, Trustable quality and good after-sale service;5, Competitive price;6, OEM is acceptable;7, CE, ISO 9001:2000 and PICC are approved.