鏡きょう面めん仕し上あげ

noun, noun which may take the genitive case particle 'no'

mirror finish; mirror-like polished surface

Refers to a highly polished surface that reflects like a mirror, often used in metalworking, manufacturing, or precision engineering contexts.

• この金きん属ぞく部ぶ品ひんは鏡きょう面めん仕し上あげが施ほどこされている。

  This metal part has been given a mirror finish.

• 鏡きょう面めん仕し上あげの表ひょう面めんは傷きずがつきやすいので注ちゅう意いが必ひつ要ようだ。

  A mirror-finished surface is easily scratched, so care is needed.