こう性能 せいのう爆薬 ばくやくじゃありません
kōseinō baku yakuja arimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 高性能爆薬

1. It is not a high-performance explosive.; It's not high-performance explosives.

Negative
Polite
Terminal Form