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 17 Drawing, marking-out... instruments; instruments for measuring length... Commodity Code Description 90 17 10 Drafting tables and machines, whether or not automatic 90 17 20 Other drawing, marking out or mathematical calculating instruments 90 17 30 Micrometers, callipers and gauges 90 17 80 Other instruments 90 17 90 Parts and accessories
