軽量 けいりょう鉄骨 てっこつ構造 こうぞうではありません
keiryō tekkotsukōzo udewa arimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 軽量鉄骨構造

1. Is not a lightweight steel frame structure.; It is not a lightweight steel frame structure.

Negative
Polite
Formal Register