ロックファイバーです
rokkufaibādesu
1. Lock fiber.
Noun
#3197712
1. Lock fiber.
1. lock
2. lock (in rugby); lock forward
1. rock (music)
2. rock; boulder
3. on the rocks (drink)
1. fiber; fibre
1. automatic lock
2. automatic door-locking system
1. to loiter; to hang around
1. hard rock
1. Little Rock
1. glass fiber; glass fibre
1. rock wool; mineral wool