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This product is a fabric-reinforced V-shaped Packing Seal for high-pressure Plunger pumps/fracturing pumps. It is made by molding high-strength interlaced fabric with special rubber/polyurethane, featuring extremely high mechanical strength, extrusion resistance and wear resistance. Its V-shaped lip structure can achieve self-tightening sealing by utilizing the high pressure of the medium, closely adhering to the outer circle of the plunger, effectively preventing the leakage of high-pressure medium and extending the service life of the plunger.