G R P Pipes' 1.GB/T19001-2000 ISO9001:2000 2.pressure 0.1,0.6 1.0 1.6 2.0 2.5MPa GB/T ... 19001-2000ISO9001:2000 G R P PipesINTRODUTION--is ... insert details on glass reinfored plastic pipes/tubesdiamererdn100~4000mmpressure0.1,0.6,1.0,1.6,2.0,2.5MPastifnessSN1250,2500,5000,10000length6M ...