| http://www.w3.org/ns/prov#value | - e screw member, said pulling means including a threaded portion capable of mating with the screw member, and a first connecting portion positioned at an opposite side to an end of said threaded portion capable of mating with said screw member in an axial direction; rotating means for causing said pulling means to rotate relative to said casing means, said rotating means including a second connecti
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