... -2000,CE 3.EN Standard,GB Standard 4.Used in gas,water,oil,etc HDPE FITTINGS Electrofusion Coupler Size From 20mm ... -3. GB15558.2,GB13663.24,used for hot water and cold water and gas,oil transpotation5,colour we can supply:black or according ... to customer6,welding connect7,OEM accept8,prompt delivery 9.High quality and ...