Instruments, appliances and machines; parts and accessories for those measuring or checking devices of heading no. 9031

Machines; for balancing mechanical parts

Test benches

Optical instruments and appliances; for inspecting semiconductor wafers or devices or for inspecting photomasks or reticles used in manufacturing semiconductor devices, n.e.c. in chapter 90

Optical instruments and appliances; for measuring or checking, n.e.c. in chapter 90

Instruments, appliances and machines; for measuring or checking n.e.c. in chapter 90