Steel Check Valve Spring for Wafer Polisher Slurry Lines from United States
A high-tensile steel spring component in hand-operated check valves for unidirectional slurry flow in semiconductor wafer polishers. It is classified under tariff item 8481.90.00 as a steel part of check appliances in wafer preparation equipment.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the spring is specifically designed for a check valve, not a general-purpose spring
• Provide technical specifications such as wire diameter and tensile strength
• Indicate the semiconductor application to support classification