| 2606.00.00 | 30 | Refractory grade | t | | | |
| 3214 | | Glaziers' putty, grafting putty, resin cements, caulking compounds and other mastics; painters' fillings; nonrefractory surfacing preparations for facades, indoor walls, floors, ceilings or the like: | | | | |
| 3816.00.00 | | Refractory cements, mortars, concretes and similar compositions, other than products of heading 3801 | | 3% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 30% |
| 3824.50.00 | | Nonrefractory mortars and concretes | | Free | | 20% |
| 6902 | | Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous fossil meals or similar siliceous earths: | | | | |
| 6903 | | Other refractory ceramic goods (for example, retorts, crucibles, muffles, nozzles, plugs, supports, cupels, tubes, pipes, sheaths and rods), other than those of siliceous fossil meals or of similar siliceous earths: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
