... system tube valve of ppr pipe fitting(Dia:20-63mm)1.Material:ppr brass 2.Top quality and factory price 3 ... .OEM ISO9001:2008 system tube valve of ppr pipe fitting(Dia ... ,D32,D40,D50,D63;2, ISO9001:2008 quality system certification 4.Competitive price, superior quality, best service ... feel free to contact me. ISO9001:2000 system tube valve of ppr pipe fitting(Dia:20-63mm ...