純じゅん正せい品ひん

noun

genuine product; official product; OEM accessory

Refers to a product made by the original manufacturer, especially accessories or parts designed for a specific main product (e.g., phone cases, car parts). Contrasts with third-party or compatible products.

• スマホのケースは純じゅん正せい品ひんを買かったほうが安あん心しんだ。