1.Brass:CuZn39Pb3 etc. 2.Cu%:57%-60% 3.PPR:Yanshan Petro,Korea Hyosung 4.Thread standard:ISO 5.Thread type:G,R, NPT, BSP Ppr ball valveFeature:1. Material: Brass(CuZn39Pb3/CuZn39Pb2, CW614N/CW617N and so on) PPR is from Hyosung of Korea.2. Thread standard: GB, BS, JIS and so on.3. Thread type: G, R, BSP, NPT2. Pressure Grade: 2.5MPa.AN3. Design standard: GB/T8464-20084. Pipe thread standard: ...