... GB/T,ISO,CE ,OHSAS 2.Easy connect for cold and hot water pipe 3.Santity,Healthy,Smooth 4.Green,Gray,White ... combined with fusion ends for socket fusion. Properties 1) Healthy and non-toxic, bacteriologically neutral, conforming to drinking water standards 2) Resistant to ... friendly, accords with GBM standards 10) Extremely long usage life for ABOVE 50 years good price green ppr fitting for water supply