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 03 Frames and mountings for spectacles, goggles or the like, and parts thereof. 90 03 19 Of other materials Commodity Code Description 90 03 19 00 Of other materials