... , cap, elbow, flange, stub end, reducer, tapping saddle, water pot, tee and ball valve Longda Plastic Industry Co., Ltd., which was established ... elbows, flange, flange washer, reducers, tapping saddles, water pot, tees and ball valves ( There are two series: electro fusion fittings ... fusion fittings).The fittings are applied in gas, oil and water systems.They have the following advantages:1. High air ...