90-degree-elbow(double-wall)        90-degree-elbow(single-wall)


Product Advantages
1. Long use life:30 years of quality gurantee.
2. Easy transportation: Light weight,rolled,convenient to move.
3. Quick installation:Pipes can be bent,all connectors can be welded by electro fusion welder directly.It only needs around 2 days to finish one station.
4. Corrosion Resistant:Resistant to diesel, gasoline, chemical materials and so on,never rust.
5. Enviroment-friendly :buried underground,will not break down,no pollution.
6. Safety:static conductive.can avoid fire caused by static electricity.
7. Product meet the standard of EN14125

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