硫酸 りゅうさんパルプじゃなかったです
aryūsamparupujanakattadesu

Noun
Desu Copula

The polite, past negative form of 亜硫酸パルプ

1. Wasn't sulfite pulp.; Wasn't wood pulp (specifically sulfite).

Past/Perfective
Negative
Polite
Casual Register