一いっ級きゅう品ひん

noun

first-class goods; A-grade product

Refers to items of the highest quality or grade, often in commercial or manufacturing contexts.

• この店みせは一いっ級きゅう品ひんだけを扱あつかっている。

  This store deals only in first-class goods.

• 検けん査さで一いっ級きゅう品ひんと認みとめられた。

  It was certified as an A-grade product in the inspection.