保存 ほぞん期間 きかん検査 けんさではありません
hozonkikankensadewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 保存期間検査

1. It is not a preservation period inspection.; It's not an inspection of the storage duration.

Negative
Polite
Formal Register
Computing