PE Electrofusion Coupler 1.PE 80/100 2.Certificate:ISO9001- ... Used in gas,water,oil,etc HDPE FITTINGS Electrofusion Coupler Size From 20mm---500mm Zhejiang XINDA plastic pipe ... Fittings,Butt fusion Fitting,Socket Joint Fitting,PE Ball ValvesFittings,PE/Steel Transition Fittings,etc. Including Reducer,,Coupler,Reducing Tee, ... fittings according to customers require Electro fusion Coupler PE PIPE FITTING