|
| 515.41 | Xanthates | |
| 532.22 | Xanthophyll | |
| 874.22 | X-blocks for supporting cylindrical work pieces (marking-out instruments) | |
| 522.21 | Xenon (excl. radioactive isotopes) | |
| 525.19 | Xenon 133 | |
| 278.99 | Xenotime | |
| 874.71 | X-radiation measuring or detecting instruments | |
| 774.21 | X-ray apparatus, for industrial, medical, dental or veterinary use | |
| 774.21 | X-ray diffraction equipment | |
| 774.21 | X-ray machines for inspection of banknotes and documents | |
| 774.21 | X-ray spectrometry equipment | |
| 335.24 | m-Xylene (excl. in the chemically or commercially pure state) | |
| 335.24 | o-Xylene (excl. in the chemically or commercially pure state) | |
| 335.24 | p-Xylene (excl. in the chemically or commercially pure state) | |
| 335.24 | Xylene (excl. in the chemically or commercially pure state) | |
| 511.24 | Xylene isomers, mixed, chemically or commercially pure | |
| 511.4 | Xylene musk | |
| 511.24 | Xylene, chemically or commercially pure | |
| 511.24 | m-Xylene, chemically or commercially pure | |
| 511.24 | o-Xylene, chemically or commercially pure | |
| 511.24 | p-Xylene, chemically or commercially pure | |
| 511.4 | Xylenesulphonic acids | |
| 512.43 | Xylenols (incl. mixed isomers), chemically or commercially pure | |
| 335.25 | Xylenols, crude or refined, not chemically or commercially pure | |
| 514.54 | Xylidines and their salts | |
| 335.24 | Xylole, crude or refined (excl. xylene in the pure or commercially pure state) | |
| 898.24 | Xylophones (excl. toys) | |
| 894.26 | Xylophones, toy | |
| 516.92 | Xylose, chemically pure | |
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