... .SDR9 to SDR11 4.For gas,water,etc. supply PE elbow(Electrofusion)1.Electrofusion pipe fittings,90degree elbow2.plastic pipe fitting ... ,HDPE/MDPE3.PE coupler,tee,elbow,reducer,cap end,stub end,etc.4.GB/EN/ANSI ... .6/SDR17/SDR21/SDR26for more detail,please contact me. PE elbow(Electrofusion) Verified Information This information is Verified by Bureau Veritas ...