| 摘要 |
A resin-junction body (501) includes a first resin member (10), a second resin member (520) including a concave portion (521) and laminated on the first resin member (10) so as to contact the first resin member at a contact surface. The concave portion (521) comprises a bottom face (521b) on a first resin member side. The resin-junction body (501) further includes a joining layer that joins the first resin member (10) and the second resin member (520) and that extends from the bottom face (521b) towards the first resin member. |
