... 63 2.material:Yanshang PPR,brass 3.OEM Stop Valve:1.size:20,25,32,40,50,632. ... material:Yanshang PPR,brass3.OEMFeatureshealthful., innocuous: the product belongs to environmental green protective building materials. It can be used ... convenient and credible: adopting hot melts joint only needs a few seconds and very on the safe sidethe working ... at least 50 years under normal use. Stop Valve for PPR pipe