| 327110 |
Textile guides, porcelain, manufacturing |
| 327110 |
Titania porcelain insulators manufacturing |
| 327110 |
Toilet fixtures, vitreous china, manufacturing |
| 327110 |
Towel bar holders, vitreous china and earthenware, manufacturing |
| 327110 |
Urinals, vitreous china, manufacturing |
| 327110 |
Vases, pottery (e.g., china, earthenware, stoneware), manufacturing |
| 327110 |
Water closet bowls, vitreous china, manufacturing |
| 327120 |
Adobe bricks manufacturing |
| 327120 |
Alumina fused refractories manufacturing |
| 327120 |
Aluminous refractory cement manufacturing |