発泡 はっぽうポリウレタンではありませんでした
happōporiuretandewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 発泡ポリウレタン

1. Was not polyurethane foam.; Was not foamed polyurethane.

Past/Perfective
Negative
Polite
Formal Register