... Valves Fittings,PE/Steel Transition Fittings,etc. Including Reducer,,Coupler,Reducing Tee,Equal Tee.End Cap.Cross Tee,Saddles,45 Elbows,90Elbows ... ,SDR11 /SDR17, According to customers inquire2. Used in gas, water, oil filed,mine, chemical industry, irrigation and drainage ect 3. Certification ... produce various kinds of pipe fittings according to customers require. : high quality hdpe pe 100 fittings