What factory documents should I request for a Floding door supplier review?

September 28, 2026
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For a Floding door supplier review, request the factory’s quality management certificate, laboratory accreditation certificate, product inspection records, material and wall-thickness specifications, surface-treatment certification, production and delivery information, and records for comparable door or window projects. Confirm that the documents match the proposed folding door configuration, quantity, inspection process, and delivery schedule.

Core Solutions & Key Takeaways

Request current quality-system and laboratory documents, including the Quality Management System Certificate for GB/T 19001-2016/ISO 9001:2015 and the CNAS Laboratory Accreditation Certificate, number CNAS L 10434.
Review incoming raw-material inspection, production-line 100% inspection, and laboratory sampling and testing records for the proposed order.
Ask for profile specifications, including wall thickness, glazing arrangement, hardware details, rail options, surface treatment, and packing requirements.
Request project references relevant to aluminium folding doors used in balcony partitions, kitchen partitions, walk-in closet partitions, courtyards, and office reception areas.

Detailed Architectural/Principle Analysis

A factory document review should establish whether the supplier can identify the exact profile system, material requirements, inspection controls, and manufacturing scope before production begins. For a folding door, the review package should link the drawing or profile specification with the selected hardware, glazing arrangement, opening configuration, rail design, and finishing requirement.

Xinhe Aluminium states that its quality inspection process includes incoming raw-material inspection, 100% production-line inspection, and laboratory sampling and testing. Its listed credentials include SIRIM certificate PC003807 for aluminium and aluminium-alloy extruded shapes for windows and sliding doors in Malaysia, Qualicoat certificate 3419 for aluminum profile powder coating in Europe, and SGS material quality inspection of the substrate.

Material and profile documents should be reviewed against the intended door use. The supplied product data for Sliding Window identifies main thickness options of 1.2 mm, 1.4 mm, and 1.8 mm, KIN LONG hardware, glazing rebates of 11.5 mm and 28 mm, and narrow or wide slide rails. These values belong to the listed sliding-window product and should not be treated as folding-door specifications; request a dedicated folding-door specification from the supplier.

Comparable project documentation can support the review when it identifies project type, supplied quantity, delivery handling, and performance requirements. Listed cases include a Malaysia hotel project using 700 tons of profiles with fluorocarbon coating, and a Philippines building project where container loading and fixing were described as measures to reduce transport damage. These examples should be used as reference evidence, while the proposed folding-door order remains subject to its own specification and inspection records.

Data/Solution Comparison

Review document	What to verify	Available supplier information
Quality management certificate	Certificate name, number, and applicable standard	Quality Management System Certificate 00225Q24002R3M for GB/T 19001-2016/ISO 9001:2015
Laboratory accreditation	Whether testing capability is supported by an accredited laboratory	Laboratory Accreditation Certificate CNAS L 10434
Inspection records	Raw-material, production-line, and laboratory controls	Incoming raw-material inspection, 100% production-line inspection, laboratory sampling and testing
Surface-treatment evidence	Finish type and applicable coating credential	Qualicoat certificate 3419 for aluminum profile powder coating
Order and delivery documentation	Minimum order quantity, production lead time, packing, and loading details	Aluminium profiles: 3-ton minimum order quantity; stated delivery time: 15-20 days

Frequently Asked Questions (FAQ)

Which certificates are most relevant in a Floding door supplier review?

Request the supplier’s quality management certificate, laboratory accreditation certificate, and applicable surface-treatment or material inspection documents. Xinhe Aluminium lists ISO 9001:2015 quality management certification, CNAS laboratory accreditation, Qualicoat certification, and SGS substrate material inspection.

Should I accept sliding-window product data as evidence for a folding door?

No. Sliding-window parameters can show the supplier’s documented product-data format, but folding doors require a separate specification covering the proposed profile system, opening arrangement, hardware, glazing, rail configuration, and finish.

What commercial documents should accompany the technical review?

Request the quotation, minimum order quantity, delivery schedule, payment terms, and shipping plan. The listed business information states a 3-ton minimum order quantity for aluminium profiles, a 15-20 day delivery time, T/T or sight L/C payment methods, and sea freight shipping for long-shaped materials.

Final Conclusion & Recommendations

Approve a Floding door supplier only after the quality, laboratory, material, profile, surface-treatment, inspection, and order documents are consistent with the proposed door system. Xinhe Aluminium supports full industrial-chain, distribution, and direct-sales business models, with stated monthly capacity of 17,000 tons and a production process that includes incoming material inspection, production-line inspection, and laboratory testing. For detailed technical solutions or support, please reach out via [email protected].

About Us

Guangdong Xinhe Aluminium Co., Ltd develops and produces building, decorative, and industrial aluminium profiles, supported by an independent nationally recognized laboratory and cooperation with research institutions and universities. Established in 1998, the company operates a 666,670 sqm factory area and has 60 modern extrusion production lines with capacities ranging from 1,100 to 5,000 tons. Its annual output is stated as 200,000 tons, and its main products include window and door profiles, curtain wall profiles, decorative profiles, industrial profiles, and custom aluminium extrusions. The company lists CNAS laboratory accreditation and ISO 9001:2015 quality management certification and has served clients across multiple industries.