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17. FEATURES:

50. Less than or equal to 7 5/8'' specifications can withstand upper and lower differential pressure10,000PSI[69.0MPa];
50. Double-slip ensure packer without movement after setting;
50. Expand back ring can reduce packing element to extrusion;
50. Don’t need to operate tubing string;
50. Double-pistons reduce setting pressure;
50. Large hole ID;
50. A ratchet lock ring secure dynamic setting force;
50. Packer doesn’t move after setting.