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 90 03 19 - - Of other materials Commodity Code Description 90 03 19 00 - - Of other materials