Precision Machining Copper Rectangle
Ultra-precise refined copper rectangular bar (±0.0005" tolerance) for aerospace connector blocks. Classifies HTS 7407.10.50.10 as refined copper with exact rectangular cross section. Stress-relieved for dimensional stability.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If copper-nickel base alloy
Note (d) copper-nickel alloys (Zn≤1%) use specific alloy bar subheadings.
If made into interchangeable cutting tools
Precision-machined copper tools become Chapter 82 tool articles.
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Import Tips & Compliance
• Metrology certificates with CMM measurements verify rectangular tolerance claims
• Aerospace traceability requires heat number/lot identification on all pieces
• ITAR registration mandatory even for commercial aerospace copper stock
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