Section 18 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof 90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof 90 24 Machines/appliances for testing the hardness, strength... of material Commodity Code Description 90 24 10 Machines and appliances for testing metals 90 24 80 Other machines and appliances 90 24 90 Parts and accessories
