PE fittings(electro/butt fusion : coupler, cap, elbow, flange, stub end, reducer, tapping saddle, water pot, tee and ball valve Longda Plastic Industry Co., Ltd., which was established in 1999, specializes in making various kinds of PE fittings, such as couplers, caps, elbows, flange, flange washer, reducers, tapping saddles, water pot, tees and ball valves ( There are two series: electro fusion ...