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9030.90.10
Parts and accessories (including printed circuit assemblies) of goods of subheading 9030.40 or 9030.82
9030.90.30 Parts and accessories of optical instruments and appliances for measuring or checking printed circuit boards/printed wiring boards and printed circuit assemblies
9030.90.40 Parts and accessories of other instruments and apparatus for measuring or checking electrical quantities on printed circuit boards/printed wiring boards and printed circuit assemblies
9030.90.90 Other