... .SIZE:20MM-630MM 3.PE material, copper wier coil HDPE electro fusion couplingPE pipe fitting: 1.HDPE electrio coupler2. Used in ... . PE material, Copper wire coil5. Used: in PE pipe connection6. electro fusion Voltage: 39.5V7. Exposed heating pin, easy and well ... fittings are widely applied for gas transfer, water disposal. HDPE electro fusion coupling