Product sourcing guide
Sourcing Aluminum Window Profiles from Foshan
Buying extruded aluminum window profiles from Foshan: alloy and temper, die ownership, wall thickness, finish, tolerance and mill evidence.
Decision summary. A profile order is a material order, not a finished-window order. Fix alloy, temper, die number, wall thickness, finish and tolerance before discussing price. Ask who owns the die and what test certificate follows the lot.
Is This Product Suitable for Your Business?
Window profiles are an upstream purchase for fabricators, system sellers and buyers who already control cutting, machining, assembly and finishing. They are not a consumer product. A small importer without fabrication capability may still buy profiles for a local fabricator, but must then manage die ownership, packing, cut length and freight. A Shopify or Amazon seller normally has no reason to buy loose profiles unless the business is explicitly selling components to trade buyers.
| Fit | Buyer type | Reason |
|---|---|---|
| Not suitable | Amazon FBA | Loose extrusion is a trade material, not a consumer-ready item with consumer packaging or installation support. |
| Not suitable | Shopify | Profiles require fabrication, finishing and technical support that a typical direct-to-consumer store cannot provide. |
| Conditional | Small importer | Relevant only when the buyer has a fabricator, a die plan and the ability to inspect dimensions and certificates. |
Fit labels are editorial judgements based on customization, shipping, installation and after-sales constraints. They are not platform eligibility decisions.
Specifications to Include in Your RFQ
Send a dimensioned profile drawing or a die number, the alloy and temper, the required wall thickness at named measurement points, the finish and its thickness, the cut length and the packing method. State the order quantity in kilograms or tonnes and whether the die is existing, modified or new. Ask for the dimensional tolerance standard and the inspection report format.
Alloy, Temper and Profile Geometry
6063-T5 and 6063-T6 are common window-profile specifications, but they are not interchangeable without checking the structural requirement. Record the temper, the wall thickness at each critical face, the profile weight per metre and any reinforcement or thermal-break detail. For a custom section, attach the CAD drawing and confirm the die number that will be used. Do not accept a generic "6063" label without temper and thickness.
Surface Finish, Tolerance and Fabrication Details
Specify powder coating or anodizing, the colour reference and the required film or oxide thickness. State which surfaces are visible and which may be left mill finish. Define the dimensional tolerance, straightness, twist and cut-length tolerance, and the measurement method. If the profile will be machined or assembled by the buyer, confirm that the supplier will leave the agreed stock on critical faces.
Test Certificates and Destination Evidence
Ask for a mill certificate or inspection report showing the alloy, temper, chemical composition and mechanical properties of the lot, plus the finish thickness and colour check. A profile certificate does not establish the performance of a finished window; if the destination requires a window-system declaration, ask for the assembly report separately. Match the certificate to the heat number or lot where the supplier can provide it.
| RFQ field | Data type | Unit | Value used in this edition |
|---|---|---|---|
| Die Number or Drawing Reference | Text | — | To be confirmed |
| Alloy | Text | — | To be confirmed |
| Temper | Text | — | To be confirmed |
| Wall Thickness at Named Points | Number | mm | To be confirmed |
| Finish Type and Colour Reference | Text | — | To be confirmed |
| Finish Thickness | Number | µm | To be confirmed |
| Cut Length and Tolerance | Text | mm | To be confirmed |
| Order Quantity | Number | kg | To be confirmed |
| Mill Certificate Required | Yes / No | — | To be confirmed |
Blank values are intentional. They must come from the buyer's drawing, the destination requirement or a supplier's written quotation; this site does not fill them with invented specifications.
Where Foshan and Dali Fit in the Supply Chain
Dali in Nanhai District is described in public references as an aluminum extrusion cluster. Extrusion is upstream of anodizing, powder coating and window fabrication. A seller may be an extruder, a finisher, a fabricator or a trader; the price and the evidence obligations differ. The Dali guide explains which claims are documented and which still need verification.
What Public Listings Reveal About MOQ and Pricing
Profiles are quoted per kilogram, per tonne or per metre, and the price depends on alloy, temper, wall thickness, finish, die and order quantity. A per-tonne figure cannot be compared with a finished-window per-square-metre figure. This edition collected no dated profile sample with a complete specification, so no price range or MOQ is published. Die cost and minimum lot size must be quoted against the actual section.
Not verified. No dated, like-for-like price sample was collected for this product category. Public listings often show a price per square metre, per piece or per kilogram without a comparable specification. Ask for a quotation against the same drawing, quantity and Incoterm.
Not verified. No dated MOQ sample was collected for this product category. MOQ can be quoted per piece, per set, per square metre, per kilogram or per tonne; confirm the unit, the model scope and whether a sample order is available in writing.
Supplier Verification and Inspection Checklist
Profile inspection is a measurement and documentation exercise. Confirm the die, alloy, temper, dimensions, finish and packing before the lot leaves the plant. The checks below are buyer recommendations, not an audit standard.
Before Paying a Deposit
Confirm whether the die exists, who owns it and what happens to it if the relationship ends. Approve the profile drawing with dimensioned wall thickness, the alloy and temper, the finish specification and the tolerance. Ask for a sample length or first-article report. Confirm the legal entity, production address, order quantity and packing method.
Before Shipment
Measure wall thickness at the agreed points, check profile dimensions and straightness, and verify the finish against the approved colour and thickness. Review the mill certificate and lot identification. Inspect bundling, interleaving and end protection; profiles are easily scratched in transit. Photograph the bundle labels and loading pattern.
Inspection checkpoints
- Wall thickness at agreed pointspreshipment
- Risk: Thin walls or uneven sections reduce stiffness and may fall outside the drawing.
Verification: Measure the named points with a calibrated gauge and record the results against the drawing tolerance. - Alloy, temper and lot certificatepreshipment
- Risk: A different alloy or temper changes strength, finish behaviour and weldability.
Verification: Match the mill certificate and lot marking to the ordered alloy and temper. - Finish colour and thicknesspreshipment
- Risk: Colour variation and thin coating are common visible complaints.
Verification: Compare against an approved sample and the specified thickness; check edges and hidden faces. - Straightness, twist and cut lengthpreshipment
- Risk: Bent profiles cause fit and machining problems downstream.
Verification: Check straightness and twist on a flat reference and measure cut lengths against the schedule. - Bundling and surface protectionpreshipment
- Risk: Interleaving and end protection failures cause scratches and dents.
Verification: Inspect interleaving, end caps, straps and bundle labels; photograph before loading. - Die identity and ownershiprfq
- Risk: A different die can produce a visually similar but dimensionally incompatible profile.
Verification: Confirm the die number on the drawing, the first-article report and the production record; document ownership terms.
Common pitfalls and checks
- Treating wall thickness as the whole quality verdictrfq
- Risk: Alloy, temper, geometry, finish and assembly also determine whether a profile works.
Verification: Specify all material and dimensional requirements, not only a wall-thickness number. - Paying for a die without ownership termsrfq
- Risk: A supplier may retain the die and the buyer may lose access or pay again later.
Verification: Put die ownership, maintenance, storage and transfer terms in the contract. - Specifying "powder coated" without a thicknessproduction
- Risk: A finish label does not define film thickness, colour or outdoor durability.
Verification: State the finish standard, colour reference and thickness, and require a measurement record.
Shipping, Replacement Parts and Total Cost
Profiles are dense and long; freight is driven by weight, length and packing rather than unit count. Confirm the maximum bundle length, the container loading plan and whether cut-to-length or deburring is included. Die cost, setup, minimum lot and finish premiums are separate from the metal price. The landed-cost guide lists the cost lines to add.
Questions to Send Your Supplier
Attach one drawing and ask for a written answer on die ownership, alloy and temper, wall thickness, finish, tolerance, certificate and packing. Require the quotation to state the quantity basis.
Prepare your RFQ. Send one drawing, one schedule and one destination. Ask every supplier to answer in the same units and to state exclusions.
- What is the required die number or drawing reference?
- What is the required alloy?
- What is the required temper?
- What is the required wall thickness at named points (mm)?
- What is the required finish type and colour reference?
- What is the required finish thickness (µm)?
- What is the required cut length and tolerance (mm)?
- What is the required order quantity (kg)?
- What is the required mill certificate required?
- Which test report, in which language, covers the exact model, size and glazing build-up?
- What is included in the quoted price, and what is excluded?
- What is the packing method, spare-parts list and replacement route?
Use the aluminum window RFQ checklist to structure the request.
Sources, Methodology and Research Limits
This page separates published source material from editorial recommendations. Supplier descriptions are treated as claims, not as verified capabilities. The research record below lists what was checked for Aluminum Window Profile.
Claims used on this page
public sourceverified6063 is described as the most common alloy used for aluminium extrusion and is used for window and door frames; it is heat treatable and suitable for anodizing.
6063 aluminium alloy — Lead section and Uses section
Limits: Encyclopedia summary; alloy selection depends on the structural requirement and applicable standard; Other alloys such as 6061 or 6082 may be specified where higher strength is needed.
public sourceverifiedExtrusion pushes material through a die to create a fixed cross-section; aluminum is the most commonly extruded metal and can form complex profiles.
Extrusion — Lead section and Materials section
Limits: General process description, not a supplier capability or tolerance statement; Die design, press size and alloy determine what a specific plant can produce.
analysisverifiedPublic listing samples from different suppliers or configurations cannot be merged into a category price range, and this edition does not publish one.
Forge Windows and Doors (FoShan) Co., Ltd. supplier profile — Product listings and customer-review price line
Limits: This is an editorial policy statement, not a claim that no comparable prices exist; A buyer can create comparability by fixing the drawing, quantity, Incoterm and acceptance criteria.
analysisverifiedWindow and door frames are listed applications of 6063 aluminum extrusions; profile geometry, alloy, temper and wall thickness are separate variables.
6063 aluminium alloy — Uses section
Extrusion — Materials, aluminum
Limits: The sources establish general application, not the suitability of a particular profile for a particular window system; Wall thickness alone is not a quality verdict.
analysisverifiedA listing price is not a comparable quotation unless the unit, specification, quantity, Incoterm and exclusions are stated.
Forge Windows and Doors (FoShan) Co., Ltd. supplier profile — Customer Reviews price line and FAQ
Limits: A methodological rule for this site, not a statement about any supplier's pricing policy; A quotation can still omit costs that appear later in freight, duties or installation.
public sourceverifiedFor 6063 material up to 13 mm thick, published reference values give minimum ultimate tensile strength of 140 MPa for T5 and 190 MPa for T6, and minimum yield strength of 97 MPa for T5 and 160 MPa for T6.
6063 aluminium alloy — Mechanical properties, 6063-T5 and 6063-T6
Limits: Values are quoted from an encyclopedia summary of secondary sources, not from a mill certificate or the governing standard; Thickness, temper practice and the applicable product standard change the acceptance values; Do not use these figures as purchase acceptance limits without the cited standard.
analysisverifiedPowder coating adds a polymer film, while anodizing converts the aluminum surface into an oxide layer; a finish label alone does not establish film thickness, adhesion, colour fastness or whole-window performance.
Powder coating — Lead section and Methodology section
Anodizing — Aluminium section and Sealing section
Limits: Comparative explanation, not a claim that one finish is better for every climate or budget; Finish performance also depends on pretreatment, application quality and maintenance.
public sourceverifiedAnodizing is an electrolytic passivation process that increases the thickness of the natural oxide layer on aluminum; sealing is commonly used to close porosity and improve corrosion resistance.
Anodizing — Lead section and Sealing section
Limits: Encyclopedia overview, not a coating specification; Film thickness, colour and corrosion performance must be defined by the order specification and verified by test.
public sourceverifiedPowder coating applies a dry polymer powder electrostatically and cures it with heat or UV to form a film; it is commonly used on aluminum extrusions.
Powder coating — Lead section and Methodology section
Limits: Encyclopedia overview, not a coating specification; Powder chemistry, cure schedule, film thickness and outdoor durability vary by product.
analysisverifiedA supplier certificate or platform badge does not show that the tested model, size and glazing configuration match a buyer's destination requirement; the report scope must be checked.
Forge Windows and Doors (FoShan) Co., Ltd. supplier profile — Certifications panel and FAQ
WANJIA high-end door and window product guide (PDF) — Manufacturer product guide reference
Limits: An evidence-checking rule, not a judgement on the validity of any certificate; Destination requirements vary by country, building type and project; no legal or code determination is made here.
public sourceverifiedWikipedia's Dali entry describes the town as mainly known for its aluminium extrusion industry; this is an encyclopedia summary, not a government or association statistic.
Dali, Guangdong — Economy section
Limits: The sentence is not supported by an inline citation on the encyclopedia page; It does not quantify the number of firms, employment, output or current activity; It cannot be used to claim that a particular supplier owns a factory in Dali.
analysisverifiedA public supplier profile can show a Foshan name and product range without documenting factory ownership, production capacity or the specific production site for an order.
Forge Windows and Doors (FoShan) Co., Ltd. supplier profile — Profile header and overview
Dali, Guangdong — Economy section
Limits: This is an evidence-reading rule, not an accusation about any named company; A factory audit or business licence check could close the gap; neither was performed for this edition.
Sources
- 6063 aluminium alloy. Wikipedia. Reference report. Accessed 10 November 2026.
What it supports: Overview of 6063 alloy composition, common extrusion use, window and door frame applications, and published T5 and T6 mechanical property values.
Limits: Encyclopedia summary of secondary sources, not the Aluminum Association standard itself; Property values depend on thickness, temper condition and product standard; they cannot be used as acceptance limits without the applicable specification. - Extrusion. Wikipedia. Reference report. Accessed 10 November 2026.
What it supports: General explanation of extrusion, die cross-sections, hot extrusion and aluminum as a commonly extruded material.
Limits: Encyclopedia overview, not an extrusion tolerance or alloy standard; Process temperatures and equipment descriptions are general and not supplier-specific. - Forge Windows and Doors (FoShan) Co., Ltd. supplier profile. Alibaba.com. Platform page. Accessed 10 November 2026.
What it supports: Supplier self-description, platform verification labels, product listing text, FAQ answers and one customer-review price entry, observed on the access date.
Limits: Company statistics and FAQ answers are supplier-provided or platform-collected and were not independently audited for this edition; A platform badge does not establish that a specific order will meet destination performance requirements. - Powder coating. Wikipedia. Reference report. Accessed 10 November 2026.
What it supports: Process description of powder coating, application, curing and use on aluminum extrusions.
Limits: Encyclopedia overview, not a coating specification or warranty document; Cure schedules and film thickness values in the article vary by powder system and are not order criteria. - Anodizing. Wikipedia. Reference report. Accessed 10 November 2026.
What it supports: Process description of anodizing, oxide growth, sealing, dyeing and typical architectural applications.
Limits: Encyclopedia overview, not a coating specification or inspection standard; Typical thickness ranges in the article are not acceptance criteria for a particular order. - WANJIA high-end door and window product guide (PDF). wanjiadw.com. Manufacturer publication. Accessed 10 November 2026.
What it supports: A manufacturer-published catalogue URL listed in the project architecture as an example of product vocabulary and self-described product categories.
Limits: The PDF could not be machine-read during this build, so its detailed claims were not used; Catalogue descriptions are self-published and do not verify production capability. - Dali, Guangdong. Wikipedia. Reference report. Accessed 10 November 2026.
What it supports: Administrative position of Dali as a town in Nanhai District, Foshan; coordinates; a brief statement about its aluminum extrusion industry.
Limits: Encyclopedia entry, not a government or industry-association cluster report; The industry sentence is unsourced on the page and is treated as a low-confidence lead, not a measured cluster statistic.
Research limits
- No extrusion plant, die shop or finishing line was visited for this edition.
- No mill certificate or dimensional inspection report was reviewed.
- No comparable per-kilogram or per-tonne price sample was collected.
- No per-kilogram or per-tonne sample with a complete specification was recorded.
- No plant or finishing line was visited.
Exclusions: Die shop audit.; Mill certificate review.; Dimensional inspection..