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, etc, and parts thereof 90 03 90 Parts of frames and mountings for spectacles, goggles or the like 90 03 90 00 Parts of frames and mountings for spectacles, goggles or the like Commodity Code Description 90 03 90 00 000 Parts of frames and mountings for spectacles, goggles or the like