| 摘要 |
A manufacturing method for a resin joining product includes a molding step in which a first resin member and a second resin member are respectively formed with a molding die, and a joining step in which abutting faces of the first resin member and the second resin member are joined with each other. A molding face of the molding die for forming the abutting face may be provided with a protruded part for forming a recessed part on the abutting face, and an ejection pin is located at a position within an area of the protruded part. Alternatively, the ejection pin may be located on a side for forming a face on an opposite side to the abutting face. Alternatively, a protruded part may be formed on the abutting face to prevent liquid from leaking out.
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