An overhanging portion, is provided on at least one of the side walls in the vicinity of the first face, and is located so as to at least partially hang over the through hole.
悬伸部分被设置于在所述第一表面附近的所述侧壁中的至少一个上，且所述悬伸部分的位置被设置成使其至少部分地悬于所述通孔之上。
An overhanging portion, is provided on at least one of the side walls in the vicinity of the first face, and is located so as to at least partially hang over the through hole.
悬伸部分被设置于在所述第一表面附近的所述侧壁中的至少一个上，且所述悬伸部分的位置被设置成使其至少部分地悬于所述通孔之上。
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