344876.0010 - REFRACTORY MATERIALS: INSULATING FIRE BRICKS,... Eff: 30APR2010
Commodity Description:
REFRACTORY MATERIALS, VIZ: Insulating Fire Bricks,
Mineral Insulations and/or Clay Refractory Mortars, N.O.S.
| Effective | 30APR2010 |
|---|---|
| Filed | 30APR2010 |
| Filing Codes | IR |
