| http://www.w3.org/ns/prov#value | - Finally, the one end of the bellows furthest from the end of the inner and outer pipes could be attached to a directly adjacent circumferential portion of the outer surface of the inner pipe and the other end of the bellows could be attached by means of an extending cylindrical member such as member 7 to a circumferential portion of the inner surface of the outer pipe adjacent to this one end of t
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