... CuZn39Pb3/CuZn39Pb2/CuZn40Pb2, C38500/C38000, C3771/C3603 and so on) Cu%:50%-60% PPR(Yanshan Petrochimical, Korea Hyosung)2 ... , no rust, anti-bacterial.3. Light weight, high strength and high impact strength.4. Convenient installation, reliable, recycled, environmental ... floor and wall heating equipment.7. Piping system for other industries and agriculture. High quality double-head PPR ball valve