ロックウールであれば
rokkūurudeareba
1. If rockwool; When rockwool
★ Common
Noun
#2356809
1. If rockwool; When rockwool
1. lock
2. lock (in rugby); lock forward
1. rock (music)
2. rock; boulder
3. on the rocks (drink)
1. wealthy; rich
1. wool
1. automatic lock
2. automatic door-locking system
1. to loiter; to hang around
1. hard rock
1. Little Rock