尿素 にょうそ樹脂 じゅしではありませんでした
nyō so jushidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 尿素樹脂

1. Was not urea resin.; Was not made of urea resin.

Past/Perfective
Negative
Polite
Formal Register