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, PHOTOGRAGHIC, CINEMATOGRAPHIC, MEASURING, CHECKING, PRECISION, MEDICAL OR SURGICAL INSTRUMENTS AND APPARATUS; CLOCKS AND WATCHES; MUSICAL INSTRUMENTS; PARTS AND ACCESSORIES THEREOF 90 31 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, Commodity Code Description 90 31 10 MACHINES FOR BALANCING MECHANICAL PARTS 90 31 20 TEST BENCHES 90 31 41 OTH.OPTICAL INST.&APPL.FOR INSPECTING SEMICONDUCTOR WAFERS/DEVICES/FOR 90 31 49 OTHER OPTICAL INSTRUMENTS & APPLIANCES 90 31 80 OTHER INSTRUMENTS, APPLIANCES AND MACHINES N.E.S/INCL. IN CH.90;PROFILE... 90 31 90 PARTS AND ACCESSORIES FOR MEASURING/CHECKING INST./APPL. & MACH., N.E.S...
