Crystal Boule Diameter Grinder Coolant Valve from Canada
Metering valve controlling coolant to diamond wheels grinding semiconductor crystal boules to exact wafer diameters. Under HTS 8481.80.9050 as wafer manufacturing preparation appliance. Critical for slicing yield.
Duty Rate — Canada → United States
12%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include boule size range (150-450mm) specifications
• Document diamond wheel RPM compatibility
• Tie to statistical note (a)(ii)(A) crystal grinders explicitly