塩化 えんかビニル樹脂 じゅしではありませんでした
enkabinirujushidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 塩化ビニル樹脂

1. Was not polyvinyl chloride.; Was not PVC.

Past/Perfective
Negative
Polite
Formal Register