| http://www.w3.org/ns/prov#value | - Thus, even though the groove permits air to vent from the bore while the dust cap is being mounted upon the ferrule, the front face of the ferrule will be isolated from the groove and, in turn, from the external environment once the dust cap has been fully mounted upon the ferrule, thereby protecting the polished front face of the ferrule from contaminants and other debris that may enter the groov
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