ロックウールじゃありません
rokkūurujārimasen
1. It is not rockwool.
★ Common
Noun
#229052
1. It is not rockwool.
1. lock
2. lock (in rugby); lock forward
1. rock (music)
2. rock; boulder
3. on the rocks (drink)
1. (common) cold; influenza
1. snake
2. serpent; large snake
1. then; well
1. wool
1. hedge