Aluminum Doors & Windows: China OEM Profiles
1 resources tagged with "Doors Windows"
Doors-and-windows sourcing from China is dominated by aluminum extrusion — custom window and door profiles run in alloys like 6063-T5 or 6061-T6, often with a PA66 GF25 polyamide thermal break for insulation. These are tooling-heavy products: each profile needs its own extrusion die, so MOQs are tied to die amortization rather than piece count. CE marking under the relevant construction-products rules applies for the EU market.
When you source aluminum profiles, the alloy temper and thermal-break design define structural and energy performance, and the die cost is a real upfront commitment. The pitfall is a factory substituting a lower-grade alloy or a thinner wall than specified — verify the alloy/temper with a material certificate and measure wall thickness on samples.
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FAQ
What aluminum alloys are used for window and door profiles in China?
Commonly 6063-T5 for general window extrusions and 6061-T6 where higher strength is needed, often combined with a PA66 GF25 thermal break for insulated systems.
Why do custom aluminum profiles have high minimums?
Each profile shape requires a dedicated extrusion die, so the MOQ is driven by tooling cost amortization rather than just material — confirm die ownership and cost in the quote.
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