Steel Check Valve Spring for Wafer Polisher Slurry Lines from Germany
High-tensile steel spring component in hand-operated check valves for unidirectional slurry flow in semiconductor wafer polishers. Under HTS 8481.90.3000 as steel part of check appliances in wafer prep equipment. Ensures mirror-finish wafer surfaces.
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
• Specify spring constant and corrosion resistance; bundle with valve assembly docs; pitfall: undervaluation as generic springs