... -4 2. Certification: ISO9001:2000,CE standard PE gas fitting Our Factory have 18 years production history in pe pipe ... fittings,Mainly for gas, water and drain outlet. We use two-time ... 630mm 1. Mateiral : PE100/PE80,SDR11 /SDR172. Used in gas ,water, oil filed, mine, chemical industry, irrigation and drainage3 ... -3. GB15558.2,GB13663.2 Electrofusion tee PE gas fitting