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6903.90.00.50/Ceramic Retort Tube/Germany

Ceramic Retort Tube from Germany

Fired mullite ceramic retort tube for gas purification processes at elevated temperatures. Specifically listed under HTS 6903.90.00.50 as refractory ceramic goods for chemical reactions.

Duty Rate — Germany → United States

10%

Rate breakdown

9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
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Import Tips

• Document end-use in chemical processing; provide mullite phase analysis; avoid electrical fitting classification by function emphasis