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Laboratory Mullite Electrical Insulators from Canada

Mullite (3Al2O3·2SiO2) ceramic standoffs and tubes for laboratory high-voltage testing equipment and spark testers. Excellent arc resistance and machinability. HTS 8546.20.00.90 classification.

Duty Rate — Canada → United States

13%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Include mullite purity (>99%) and volume resistivity (>10^14 ohm-cm) data

Specify surface finish (Ra < 0.8μm) for high-voltage applications

Laboratory Mullite Electrical Insulators from Canada — Import Duty Rate | HTS 8546.20.00.90