Combined electrofusion tee. 1.PE80/PE100,SDR11 SDR17 2.used in gas,water,oil 3.CE standard 4.Cocealed heating wire Electrofusion ... 18 years production history in pe pipe fittings,Mainly for gas, water and drain outlet. We use two-time injection mould ... make safer.1. Mateiral : PE100/PE80,SDR11 /SDR172. Used in gas ,water, oil filed, mine, chemical industry, irrigation and drainage3. Certification ...