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PIPE SEAL COMPRISES A RING-SHAPED SEAL WITH FIRST AND SECOND SEAL PORTIONS, THE FIRST PORTION BEING COMPOSED OF A RESILIENT COMPOUND THAT IS DEFORMABLE UNDER PRESSURE AND THE SECOND PORTION RESISTING DEFORMATION
PIPE SEAL COMPRISES A RING-SHAPED SEAL WITH FIRST AND SECOND SEAL PORTIONS, THE FIRST PORTION BEING COMPOSED OF A RESILIENT COMPOUND THAT IS DEFORMABLE UNDER PRESSURE AND THE SECOND PORTION RESISTING DEFORMATION