... .Brass:CuZn39Pb3 and so on 2.Cu%:54-58% 3.Thread standard:ISO,DIN,etc ... CuZn39Pb3/CuZn39Pb2, C38500/C38000, C3603/C3771, CW614N/CW617N) 2. Pressure Grade: 1.6MPa3. Design standard: GB/T8464 ... the water supply system.2. Corrosion resistant, not scaling, no rust, anti-bacterial.3. Light weight, high ... hot water piping system.2. Transport and discharge for industrial water and chemicals.3. Piping system for ...