Optical, photographic or cinematography measure, control or precision instruments. medical surgical instruments. watch making instruments. musucal instruments and their accessories or devices., 90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof, 90.24 -machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics), and parts and accessories thereof:, 90.24.90.00.000.W -machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics), and parts and accessories thereof: --parts and accesories, Optical, photographic or cinematography measure, control or precision instruments. medical surgical instruments. watch making instruments. musucal instruments and their accessories or devices., 90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof, 90.01 -optical fibers and optical fiber bundles; optical fiber cables other than those of heading 8544; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked:, Companies

Customs glossary
Optical, photographic or cinematography measure, control or precision instruments. medical surgical instruments. watch making instruments. musucal instruments and their accessories or devices.
90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof
90.24 -machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics), and parts and accessories thereof:
90.24.90.00.000.W -machines and appliances for testing the hardness, strength, compressibility, elasticity or other mechanical properties of materials (for example, metals, wood, textiles, paper, plastics), and parts and accessories thereof: --parts and accesories
Optical, photographic or cinematography measure, control or precision instruments. medical surgical instruments. watch making instruments. musucal instruments and their accessories or devices.
90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof
90.01 -optical fibers and optical fiber bundles; optical fiber cables other than those of heading 8544; sheets and plates of polarizing material; lenses (including contact lenses), prisms, mirrors and other optical elements, of any material, unmounted, other than such elements of glass not optically worked: