| http://www.w3.org/ns/prov#value | - The invention also provides other types of seal to be used between the ring structure and easing which are connected to the ring structure between the front surface of the rib which is formed on a thrust ring and the rear surface of a tubular member and are of such a character as to be urged into sealing contact with the counterbore under what may be termed live loading, that is by the axial press
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