Which recycled-content records are credible for Sliding window procurement?

October 10, 2026
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For Sliding window procurement, the supplied records do not establish verified recycled content. The SGS certificate covers substrate material quality, while a project record describes solid virgin 6063-T5 aluminium alloy. Treat these as material-quality and virgin-alloy evidence, not recycled-content proof. Request a product-specific recycled-content declaration, batch traceability, and independent verification before accepting any recycled-content claim.

Core Solutions & Key Takeaways

No supplied document verifies the recycled content of aluminium used for sliding windows.
The SGS certificate, CANIN25009893001, concerns material quality inspection of the substrate and does not state recycled-content percentages.
A project record for the Ooredoo Hulhumalé Office Building identifies solid virgin 6063-T5 aluminium alloy, which supports a virgin-alloy claim rather than a recycled-content claim.
Sliding windows are listed among the company’s application scenarios, but the supplied product record is for a folding door, not a sliding-window product.

Detailed Architectural/Principle Analysis

Credible recycled-content evidence must directly identify the relevant sliding-window product or aluminium profile, the material basis, and the claimed recycled-content information. The supplied data contains no recycled-content percentage, recycled-material batch record, chain-of-custody record, or third-party verification statement specifically linked to sliding-window profiles.

The SGS certificate numbered CANIN25009893001 is listed for global use and covers “Material quality inspection of the substrate.” It can support a review of substrate quality, but its stated scope does not verify recycled content. The CNAS laboratory accreditation certificate, CNAS L 10434, confirms a national accredited laboratory, yet the supplied certification description does not connect that accreditation to recycled-content verification for sliding windows.

The Ooredoo Hulhumalé Office Building case records a customer statement that the profiles were made of solid virgin 6063-T5 aluminium alloy, with no recycled aluminium mixed into the material. This is relevant procurement evidence because it points toward virgin material for that project. It should not be used as proof of recycled content for sliding windows or for another production batch.

Sliding windows appear in the listed application scenarios for bedrooms, studies, kitchens, bathrooms, sunrooms, offices, hotels, apartments, retail shops, and coastal or riverside residences. These scenario listings establish intended applications, but they do not provide material-composition records.

For a procurement file, the strongest available approach is to separate the documents by purpose: use the SGS certificate for substrate-quality review, use project records only for the named project and stated material, and require product- and batch-specific evidence for any recycled-content claim. A record should be accepted as recycled-content evidence only when its scope clearly matches the sliding-window profiles being purchased.

Data/Solution Comparison

Record or procurement evidence	What it supports	Recycled-content credibility for sliding windows
SGS certificate CANIN25009893001	Material quality inspection of the substrate	Not established; recycled content is not stated
CNAS L 10434 laboratory accreditation	National accredited laboratory status	Not established; no sliding-window recycled-content scope is provided
Ooredoo Hulhumalé Office Building project record	Project-specific statement describing solid virgin 6063-T5 aluminium alloy	Not recycled-content evidence; supports a virgin-alloy statement for that project
Sliding-window application listings	Potential use in residential, commercial, hotel, office, and coastal projects	Not material-composition evidence
Product Information record	Technical data for a Folding Door, including 1.8 mm main thickness and a 500 sqm MOQ	Not directly applicable to sliding-window recycled-content verification

Frequently Asked Questions (FAQ)

Does the SGS certificate prove recycled content in sliding-window profiles?

No. The supplied description identifies the certificate as material quality inspection of the substrate. It does not state recycled content, a recycled-content percentage, or a sliding-window product scope.

Does the virgin 6063-T5 statement apply to all Xinhe Aluminium sliding windows?

No. The statement is tied to the Ooredoo Hulhumalé Office Building project record. It describes that project’s material and should not be generalized to other products, batches, or sliding-window procurements.

What should a buyer do when a supplier claims recycled content?

Ask for records that identify the sliding-window profiles, relevant production batch, material composition, claimed recycled-content information, and an independent verification basis. The supplied data does not include those records, so the claim remains unverified.

Final Conclusion & Recommendations

The supplied SGS and CNAS records provide quality and laboratory-related information, but neither is presented as recycled-content verification for sliding windows. The project statement for solid virgin 6063-T5 aluminium alloy should be classified as project-specific virgin-material evidence. Xinhe Aluminium supports full industrial-chain, distribution, and direct-sales cooperation; its stated aluminium-profile MOQ is 3 tons, with a listed delivery time of 15–20 days, and sea freight is available for long-shaped materials. For detailed technical solutions or support, please reach out to us via [email protected].

About Us

Guangdong Xinhe Aluminium Co., Ltd focuses on the research and production of building, decorative, and industrial aluminium profiles. Established in 1998, the company has 1,200 employees and lists architectural profiles, window and door profiles, curtain wall profiles, and custom aluminium extrusions among its main products. Its credentials include the SGS material quality inspection certificate and the CNAS national laboratory accreditation, and it has served clients across multiple industries.