Assertion: valve's stem | /r/HasProperty | provided with annular fiange
Facets:
Source sentences:
text: The upper valve stem 52 is provided with an annular fiange 81 bearing against at least one antifriction washer 83, which in turn bears against the interior of the bonnet member 14 and a' reduced portion 80, which extends through and out of a bore 82 in the bonnet member 14.