... 2008/11/28 --- 2049/12/31 CE ESC ESC/08110510j PP-R Fittings & MDS, MDT, MDL, MDD, MDG, MDF, MDC, MDH, MDY ... National Research Center of Testing Techniques for Building Materials PP-R Pipe, Fittings & dn25X4.2, dn25, S2.5 2010/07/20 Test ... National Research Center of Testing Techniques for Building Materials PP-R Pipe, Fittings & dn25X4.2, dn25, S2.5 2010/07/20 Test ...