| 6303.99.00 | 30 | Containing 85 percent or more by weight of silk or silk waste | No. kg | | | |
| 6304.19.30 | 30 | Containing 85 percent or more by weight of silk or silk waste | No. kg | | | |
| 6304.91.00 | 60 | Containing 85 percent or more by weight of silk or silk waste | No. kg | | | |
| 6304.99.60 | 30 | Containing 85 percent or more by weight of silk or silk waste | kg | | | |
| 6505.90.90 | 30 | Containing 70 percent or more by weight of silk or silk waste (759) | doz. kg | | | |
| 6806.90.00 | 20 | Of molded calcium silicate | X | | | |
| 6901.00.00 | 00 | Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (for example, kieselguhr, tripolite or diatomite) or of similar siliceous earths | t | Free | | 30% |
| 6902 | | Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous fossil meals or similar siliceous earths: | | | | |
| 6902.20 | | Containing by weight more than 50 percent of alumina (Al2O3), of silica (SiO2) or of a mixture or compound of these products: | | | | |
| 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: | | | | |
| 6903.20.00 | 00 | Containing by weight more than 50 percent of alumina (Al2O3) or of a mixture or compound of alumina and of silica (SiO2) | kg | Free | | 30% |
| 7001.00.10 | 00 | Of fused quartz or other fused silica | kg | Free | | 30% |
| 7002.20.10 | 00 | Of fused quartz or other fused silica | kg | Free | | 40% |
| 7002.31.00 | 00 | Of fused quartz or other fused silica | kg | Free | | 40% |
| 7013.10.10 | 00 | Kitchenware, non-glazed, greater than 75 percent by volume crystalline, of lithium aluminosilicate, having a linear coefficient of expansion not exceeding 10 x 10-7 per Kelvin within a temperature range of 0 degrees C to 300 degrees C, transparent, haze-free, exhibiting transmittances of infrared radiations in excess of 75 percent at a wavelength of 2.5 microns when measured on a sample 3 mm in thickness, and containing beta-quartz solid solution as the predominant crystal phase | No. | 6.9% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P, SG) | 75% |
| 7017.10 | | Of fused quartz or other fused silica: | | | | |
| 7019.40.40 | 30 | Silica filament fabric of filaments with a silica content greater than 93 percent (622) | m2 kg | | | |
| 7019.40.90 | 30 | Silica filament fabric of filaments with a silica content greater than 93 percent (622) | m2 kg | | | |
| 7106 | | Silver (including silver plated with gold or platinum), un- wrought or in semimanufactured forms, or in powder form: | | | | |
| 7106.92.10 | 00 | Rectangular or near rectangular shapes, con- taining 99.5 percent or more by weight of silver and not otherwise marked or decorated than with weight, purity, or other identifying inform- ation | g | Free | | Free |
| 7107.00.00 | 00 | Base metals clad with silver, not further worked than semi- manufactured | g | 3.3% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 30% |
| 7109.00.00 | 00 | Base metals or silver, clad with gold, not further worked than semimanufactured | g | 6% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P, SG) | 65% |
| 7111.00.00 | 00 | Base metals, silver or gold, clad with platinum, not further worked than semimanufactured | g | 10% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P) 3.7% (SG) | 65% |
| 7113 | | III. JEWELRY, GOLDSMITHS' AND SILVERSMITHS' WARES AND OTHER ARTICLES | | | | |
| 7113.11 | | Of silver, whether or not plated or clad with other precious metal: | | | | |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
