| http://www.w3.org/ns/prov#value | - A cylindrical-knitted structure, with stretchability, is preferable.When a guitar-shaped balloon is prepared, for example, an elastic band is adhered on the middle part of an elastic body with an adhesive such as a rubber paste.As the elastic yarn has a core yarn for a textured yarn, any fiber with stretchability can be used without specific limitation.
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