6063 Aluminum Channel Profile
U-shaped channel extrusions from 6063 aluminum alloy for window frames and curtain walls. Under HTS 7604.29.1090 as 'other' profiles, distinguished by open channel cross-section not qualifying as hollow or rectangular. Alloy composition includes magnesium and silicon exceeding purity thresholds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If closed or hollow channel design
Hollow variants classified separately in 7604.29.30.
If when assembled into complete window frames
Finished multiple-glazed windows move to glass Chapter 70.
If for retail sale as finished doors/ windows
Aluminum doors, windows, and frames for retail go to 7610.10.
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Import Tips & Compliance
• Document anodizing or finishing if applied; surface treatments don't change 7604 classification
• Ensure invoices specify 'extruded profile' to prevent confusion with rolled products
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