... .Thread spec.:G,R,NPT 5.Size:20mm-75mm ppr ball valveFeature:1.Material:Brass(CuZn39Pb3/CuZn39Pb2/CuZn40Pb2, C38500/C38000, ... not scaling, no rust, anti-bacterial.3. Light weight, high strength and high impact strength.4. Convenient installation, reliable, recycled, environmental protection ... equipment.7. Piping system for other industries and agriculture. High quality double-head PPR ball valve