| 6804.21.00 | 00 | Other millstones, grindstones, grinding wheels and the like: | | | | |
| 6804.21.00 | 00 | Of agglomerated synthetic or natural diamond | No. | Free | | 30% |
| 6804.22 | | Of other agglomerated abrasives or of ceramics: | | | | |
| 6804.22.10 | 00 | Bonded with synthetic resins | kg | 5¢/kg + 2% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | $1.10/kg + 40% |
| 6804.22.40 | 00 | Other: | | | | |
| 6804.22.60 | 00 | Other | X | Free | | 30% |
| 6804.23.00 | 00 | Of natural stone | No. | Free | | Free |
| 6804.30.00 | 00 | Hand sharpening or polishing stones | No. | Free | | Free |
| 6805 | | Natural or artificial abrasive powder or grain, on a base of textile material, of paper, of paperboard or of other materials, whether or not cut to shape or sewn or otherwise made up: | | | | |
| 6805.10.00 | 00 | On a base of woven textile fabric only | kg | Free | | 20% |
| 6805.30 | | On a base of other materials: | | | | |
| 6805.30.10 | 00 | Articles wholly or partly coated with abrasives, in the form of sheets, strips, disks, belts, sleeves or similar forms | kg | Free | | 20% |
| 6805.30.50 | 00 | Other | kg | Free | | 20% |
| 6806 | | Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69: | | | | |
| 6806.10.00 | | Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls | | 3.9% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 30% |
| 6806.10.00 | 10 | Accoustical pads and boards | m2 | | | |
| 6806.10.00 | 20 | Other: | | | | |
| 6806.10.00 | 20 | Batts, not exceeding 61 cm in width | m2 | | | |
| 6806.10.00 | 40 | Batts, exceeding 61 cm in width | m2 | | | |
| 6806.10.00 | 90 | Other | X | | | |
| 6806.20.00 | 00 | Exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials (including intermixtures thereof) | kg | Free | | 30% |
| 6806.90.00 | | Other | | Free | | 30% |
| 6806.90.00 | 10 | Accoustical pads and boards | m2 | | | |
| 6806.90.00 | 20 | Other: | | | | |
| 6806.90.00 | 20 | Of molded calcium silicate | X | | | |
Harmonized Tariff Schedule of the United States inquiry: 3920590000
