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, me Thereof. 90 03 Frames and mountings for spectacles, goggles or the like, and parts thereof Commodity Code Description 90 03 11 - - Of plastic 90 03 19 - - Of other materials 90 03 90 - Parts