Precision Lapping Machine for Hydraulic Valve Spools from Japan
A flat-bed lapping machine using diamond abrasives to achieve micron-level flatness on metal hydraulic valve spools and cermet wear surfaces. Used in heavy machinery manufacturing for leak-proof sealing. Under 8460.90.80.80 for lapping/finishing metal surfaces with abrasives.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include flatness tolerance specs (e.g
• <1 micron) and abrasive type in invoices to justify machine tool status
• Certify for industrial metalworking use only; avoid lab or semiconductor references in marketing materials