フッ ふっかポリイミドではありませんでした
fukka poriimidodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of フッ化ポリイミド

1. Was not polyimide fluoride.; Was not a polyimide fluoride.

Past/Perfective
Negative
Polite
Formal Register
Chemistry