軽量 けいりょう鉄骨 てっこつ構造 こうぞうじゃないです
keiryō tekkotsu kōzōjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 軽量鉄骨構造

1. It's not a lightweight steel frame structure.

Negative
Polite
Casual Register