HDPE pipe fitting 1.PE80/ 100 2.Certificate:CE ,ISO9001:2000, 3.For gas,water,oil,etc 4.SDR11/SDR17 HDPE pipe fittingHDPE Butt fusion ... your benefits.1. Mateiral : PE100/PE80,2. Certification: ISO9001:2000, CE.GMC3. Product Standard: EN1555-3, EN12201-3. GB15558.2,GB13663 ... . OEM accept8. High quality and competitive price9. SDR11/SDR17 hdpe pipe fitting with flange