Crystal Puller Vacuum Chamber Lid from Germany
Stainless steel lid with viewport and ports for Czochralski puller vacuum chambers, maintaining argon atmosphere during growth. Double O-ring seal design. Structural part of crystal growing equipment in 8442.40.00.00.
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
• Helium leak test certification (<10^-9 atm cc/sec) required for vacuum integrity
• Port configurations (thermocouple, seed lift) must match puller specifications
• Include material certs (316L SS) for high-temperature vacuum service