Float Zone Crystal Bearing Inner Ring
Float zone purified silicon inner ring for vacuum ball bearings in zone refining equipment. Ultra-low oxygen content prevents contamination in GaAs crystal growth. HTS 8482.99.05.00 for specialized ball bearing inner rings.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If zone refining furnace parts
Thermal processing apparatus for crystals.
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Import Tips & Compliance
• Document float zone process (oxygen <1ppb) and vacuum rating (>10^-8 Torr)
• Distinguish from Czochralski material via impurity specs
• Single-piece import only; assembled vacuum bearings may reclassify
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