ポリフッ ふっかビニリデンじゃなかったです
porifukkabiniridenjanakattadesu

Noun
Desu Copula

The polite, past negative form of ポリフッ化ビニリデン

1. Wasn't polyvinylidene fluoride.; Wasn't PVDF.

Past/Perfective
Negative
Polite
Casual Register