... available; 3, High quality; 4, CE, ISO 9001 and PICC are approved 1, Size: φ20, 25, 32, 40, 50, ... 63mm;2, PPR and aluminium material;3, High temperature and pressure resistance;4, Healthful, environment-friendly;5, Heat ... preservation and energy saving; 6, Trustable quality and good after-sale service;7, Competitive price;8 ...