Harmonized System
Section XVIII > Chapter 90 > Heading 9030 > 9030.90
Parts and accessories
Section XVIII > Chapter 90 > Heading 9031
Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this Chapter; profile projectors.
Section XVIII > Chapter 90 > Heading 9031 > 9031.4
Other optical instruments and appliances
Section XVIII > Chapter 90 > Heading 9031 > 9031.10
Machines for balancing mechanical parts
Section XVIII > Chapter 90 > Heading 9031 > 9031.20
Test benches
Section XVIII > Chapter 90 > Heading 9031 > 9031.4 > 9031.41
For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits)
Section XVIII > Chapter 90 > Heading 9031 > 9031.80
Other instruments, appliances and machines
Section XVIII > Chapter 90 > Heading 9031 > 9031.90
Parts and accessories