Parts and Material：
Body : CW617N or CW614N, in accordance with requirements of UNE-EN15.875
Ring: Antioxidant Pex-a
Superiority：
1. The joint is much tighter, and the stress on the head part of the fitting and the ring is equal.
2. The installation tools for the series are compatible with the present tools in the industry of overseas market.
3. The series are free of O-ring.
