| http://www.w3.org/ns/prov#value | - FIG. 208 shows a state in which the band 618 has been mounted when it is seen in the direction of the arrow A-A of FIG. 206. [0609] The air tight valve 616 according to the present embodiment is made of a material such as a silicon rubber, a natural rubber, or an isopropylene rubber, and is fixed to tubes 37, 73 by using an adhesive material.
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