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| Term | Description |
|---|---|
| Fiberboard | Insulation composed principally of cellulose fibers usually derived from paper, paperboard stock or wood, with or without binders. See "insulation." |
| Term | Description |
|---|---|
| Fiberboard | Insulation composed principally of cellulose fibers usually derived from paper, paperboard stock or wood, with or without binders. See "insulation." |