| http://www.w3.org/ns/prov#value | - The second tubular member of the assembled first and second tubular members 22 and 23 was then progressively heated along its length in a suitable manner such as by a hot air tool to a suitable temperature as for example 120??? C. to cause the second or outer tubular member 23 to shrink in a manner well known to those skilled in the art so that it forms a tight seal with respect to the first tubul
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