フッ ふっかポリイミドじゃなかったです
fukka poriimidojanakattadesu

Noun
Desu Copula

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

1. Wasn't polyimide fluoride.; Wasn't fluorinated polyimide.

Past/Perfective
Negative
Polite
Casual Register
Chemistry