Polycrystalline Synthetic Diamond Powder 325 Mesh Lapping Grade from Japan
Polycrystalline synthetic diamond powder at 325 mesh (44 micron), optimized for lapping carbide and ceramic substrates. Classifies in 7105.10.0030 as it meets synthetic diamond powder definition with 80 mesh or finer particles per sieve note. Key for hard disk drive manufacturing.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Batch testing for friability index recommended; high friability may trigger abrasion testing by CBP
• Package in nitrogen-flushed containers; oxidation proof required for fines storage