... /100 Raw Material 2.Certificate:ISO9001-2000,CE 3.EN Standard,GB Standard 4.SDR11/SDR17 HDPE pe 100 fittings:Reducing Tee ... : PE100/PE80,SDR11 /SDR17, According to customers inquire2. Used in gas, water, oil filed,mine, chemical industry, irrigation and drainage ... : ISO9001:2000,CE, GMC Certificate approval by INTERTEK4. Product Standard: EN1555-3, EN12201-3. GB15558.2,GB13663.2 Our factory ...