... :DIN 8077/8078 ISO9001:2008 Best steady ppr pipe and fitting of concealed valve for export1, raw material: ppr and brass2, pressure ... rating:2.5mpa3, color: white, green, grey, blue4, size:20mm ... , and about 100 years of service life under normal conditions, 20 degreeProducts specifications and details :1, Spec:D20,D25,D322, ...