| http://www.w3.org/ns/prov#value | - In order to obtain soft fit feeling and in order to improve fit durability, the cap sleeve 38 may employ a material which is low in rigidity or low in heat resistance, such as PP(polypropylene), PE(polyethylene), CO-PET(which consists of PET as a main component and other resins (e.g., poly-cyclohexanedimethanol(PCT))), a substance including rubber components, or the like.
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