| http://www.w3.org/ns/prov#value | - The basic shape of the guide pin 4 in a third embodiment of the present invention shown in FIG. 4 is the same as that in the second embodiment of the present invention, except that the guide hole 4 having the minimum inner diameter portion 42 on the connector end surface side is formed in a cylindrical member 6 made of ceramics such as zirconia, or the like, and that the cylindrical member 6 is fo
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