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 15 Surveying, hydrographic, oceanographic... instruments/appliances, nes 90 15 30 Levels Commodity Code Description 90 15 30 00 Levels
