| http://www.w3.org/ns/prov#value | - A wear-inhibiting ring 19 of a durable metallic construction adapted to engage the inner periphery of the cylindrical portion of lesser diameter 17 and to pass over the flange-like portion 18 may be positioned within the inner circumference and fixedly secured in gripping engagement with an internal flange-like portion 18 by rolling, compression, flaring or other suitable means.
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