 |
| |||
| rock wool; stone wool | |||
| rock wool A generic term for felted or matted fibers manufactured by blowing or spinning threads of molten rock, slag, or glass. The material is used for thermal insulation | |||
|
| |||
| rock wool; stone wool | |||
| rock wool A generic term for felted or matted fibers manufactured by blowing or spinning threads of molten rock, slag, or glass. The material is used for thermal insulation | |||
