ISO9001:2008 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 ... D25,D32,D40,D50,D63;2, ISO9001:2008 quality system certification 4.Competitive price, superior quality, best service ... just feel free to contact me. ISO9001:2000 system tube valve of ppr pipe fitting(Dia:20-63mm ...