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Porcelain Suspension Insulator Disc from Japan

A single porcelain disc unit for string suspension insulators in extra-high-voltage transmission lines, featuring ball-and-socket design. Classified in HTS 8546.20.00 for its ceramic construction providing high mechanical and electrical strength.

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%

Import Tips

Certify to IEC 60383 standards; provide puncture and flashover test results

Declare as individual units, not strings, to prevent set classification issues

Porcelain Suspension Insulator Disc from Japan — Import Duty Rate | HTS 8546.20.00