PE Syphon pot,PE pipe fitting,gas pipe fittings,PE coupling 1.Good quality favorable price 2.With certificate 1. Mateiral : PE100/PE80,SDR11 /SDR172. Used in gas ,water , drain outlet3. Certification: ISO9001:2000, GMC Certificate approval by TUV4. Product Standard: EN1555-3, EN12201-3. GB15558.2,GB13663.2