Precision Copper Balls for Float Zone Crystal Grower Bearings from Germany
High-purity copper alloy balls for vacuum bearings in float zone crystal growers that produce semiconductor boules from polycrystalline silicon rods. Classified under HTS 8482.91.0015 due to statistical note 6 designation for copper alloy balls in semiconductor material growth equipment. Essential for precise rotation control in ultra-clean processing.
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%
Import Tips
• Include technical specs showing tolerance levels (e.g
• sphericity <1μm) proving semiconductor-grade precision
• Submit end-user statements confirming incorporation into statistical note 6 equipment
• Verify RoHS compliance documentation for cleanroom certification