... 4.Modle:Erlang Shen 5.Standard:ISO SpecificationsHDPE pipe fittings 1.Butt fusion HDPE pipe fittings 2.PE100/PE80 3.SDR7 to SDR26 ... 4.For gas,water,etc. supplyHDPE pipe fittings1.Butt fusion pipe fittings,2.plastic pipe ... fitting,HDPE/MDPE3.PE coupler,tee,elbow,reducer, ...