| 摘要 |
An undercut for a blow-molded container is provided and may include a top surface, first and second side surfaces, and first and second end surfaces. The side surfaces are connected to the top surface, and the side surfaces may be substantially flat, substantially parallel with one another, and substantially perpendicular with the top surface. The first end surface is connected to the top surface and the side surfaces, and may be positioned at an obtuse angle relative to the top surface. The second end surface is connected to the top surface and side surfaces. The second end surface may include a tip portion and a concave arc portion. The tip portion may be flat and extend from the top surface at an acute angle. The concave arc portion extends from the tip portion and underlies the top surface to form a hook-shaped fastener for attaching an object to the undercut.
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