Brick Details
| Type | Firebrick |
| Maker | NATIONAL REFRACTORIES CO. |
| City | FROSTBURG |
| State | MD |
| Properties |
| Brand | Line Properties | Notes |
| ALUMEX 50 | FP |
| Type | Firebrick |
| Maker | NATIONAL REFRACTORIES CO. |
| City | FROSTBURG |
| State | MD |
| Properties |
| Brand | Line Properties | Notes |
| ALUMEX 50 | FP |