| 90 | Optical instruments and apparatus, photographic, cinematographic, measuring, checking, precision, medical or surgical; parts and accessories |
| 9024 | Machines and equipment for hardness testing, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics) |
| 902480 | Other machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials |
| 9024801900 | Electronic machines and other equipment, other |