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9031.49.90.00/Optical Flatness Tester/Japan

Optical Flatness Tester from Japan

Interferometric instrument measuring surface flatness of precision optical components and gauge blocks. Precision optical measuring instrument under HTS 9031.49.9000 for gauge and optical manufacturing.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Specify fringe interpretation method (Fizeau/Twyman-Green) and wavelength stability

• Include test plate material (fused silica/zerodur) and flatness specification

• Provide helium-neon laser stabilization documentation if applicable

Optical Flatness Tester from Japan — Import Duty Rate | HTS 9031.49.90.00