1, multi-layer sand control filter sleeve with efficient sand control performance, can better block formation sand, meet the needs of underground sand control.

2, uniform filter hole, high permeability and blocking performance.

3, large filtration area, small flow resistance, high oil yield

4. Excellent corrosion resistance, acid, alkali and salt corrosion resistance, stainless steel can adapt to the special requirements of oil Wells, the gap will not gradually become larger due to corrosion.

5, multi-layer structure welding one, can make the filter hole stable, strong deformation resistance.