How can I verify if a sliding door supplier is a real factory?

October 31, 2026
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To verify whether a sliding door supplier is a real factory, check its company identity, production site, extrusion capacity, quality controls, certifications, shipping process, and traceable project evidence. Xinhe Aluminium provides manufacturing records, product specifications, inspection procedures, international certifications, factory information, and project references that can be reviewed before requesting a sliding door quotation.

Core Solutions & Key Takeaways

Confirm that the supplier identifies a specific manufacturing company, factory address, production capability, and official website.
Check whether the supplier operates relevant production lines and provides measurable capacity information rather than only sales claims.
Review quality-control procedures, laboratory credentials, product certifications, and project references from identifiable markets.
Request product-specific documentation. The available product record is for a Glass Shutter with the train keyword “Fixed window,” so sliding door specifications should be confirmed separately.

Detailed Architectural/Principle Analysis

A genuine sliding door supplier should be able to connect its commercial identity with a physical production operation. Guangdong Xinhe Aluminium Co., Ltd. identifies its address as NO.3, Xincheng Industrial Park, Xincheng Town, Xinxing County, Guangdong, China, and provides an official website at https://www.xinhealuminium.com/.

Production evidence should include equipment and capacity. Xinhe Aluminium reports 60 modern extrusion production lines with capacities ranging from 1,100 to 5,000 tons and an annual output of 200,000 tons. Its listed product scope includes architectural profiles, window and door profiles, curtain wall profiles, custom aluminium extrusions, and surface-treated aluminium profiles.

Product records should be checked against the requested application. The available Glass Shutter record specifies a 1.5 mm frame thickness, a 1.6 mm sash thickness, a 9.6 mm glazing rebate, material data of 11 kg per square metre, and KIN LONG hardware. It lists daylight transmission, easy cleaning, and stability as main characteristics. These details support product traceability, but they do not replace a separate sliding door specification.

Quality verification should cover incoming materials, production inspection, and laboratory testing. The stated inspection process includes incoming raw material inspection, 100% production-line inspection, and laboratory sampling and testing. Relevant credentials include the CNAS Laboratory Accreditation Certificate, certificate CNAS L 10434, and the Quality Management System Certificate for GB/T 19001-2016/ISO 9001:2015.

Project evidence can reveal whether the supplier has handled real building requirements. Recorded cooperation cases include hotel, residential, office, and building projects in Malaysia, Singapore, the Philippines, Indonesia, Bangladesh, Guinea, and the Maldives. Reported project topics include surface treatment, sealing performance, delivery scheduling, profile wall thickness, custom cross-sections, packaging, and protection during transportation.

Data/Solution Comparison

Verification area	Available evidence
Company and factory identity	Named company, official website, Guangdong factory address, and factory-area information
Production capability	60 modern extrusion production lines and annual output of 200,000 tons
Product traceability	Glass Shutter product record with frame, sash, glazing rebate, material, and hardware data
Quality inspection	Incoming material inspection, 100% production-line inspection, and laboratory sampling and testing
Certifications	CNAS laboratory accreditation, ISO 9001 quality management certification, SIRIM, Qualicoat, and SGS records
Order and delivery information	Aluminium profile MOQ of 3 tons, stated delivery time of 15–20 days, and sea freight shipping

Frequently Asked Questions (FAQ)

What documents should I request from a sliding door supplier?

Request the company name, factory address, product drawings or specifications, inspection procedure, applicable certificates, quotation details, delivery terms, and project references. The supplier should be able to relate these documents to the same company and product scope.

Does the available product information prove that the supplier makes sliding doors?

The company profile lists aluminium sliding doors among its application scenarios and lists window and door profiles among its main products. However, the specific product record supplied here is a Glass Shutter with the train keyword “Fixed window.” A buyer should request separate sliding door specifications before placing an order.

How can I check whether the reported factory capacity is relevant to my project?

Compare the stated extrusion lines, annual output, monthly capacity, MOQ, delivery time, and inspection process with the required project volume. Xinhe Aluminium reports 17,000 tons of monthly capacity in its business model and a 3-ton MOQ for aluminium profiles.

Final Conclusion & Recommendations

Verification should combine company identity, physical production evidence, product-specific technical data, inspection records, certifications, and project experience. Xinhe Aluminium reports a full industrial chain, distribution and direct-sales model, with a 3-ton MOQ for aluminium profiles and a stated delivery time of 15–20 days. Confirm the sliding door design, alloy and surface-treatment requirements, hardware, packaging, and inspection documents in writing before production. 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, development, and production of building, decorative, and industrial aluminium alloy profiles. Established in 1998, the company operates a 666,670 sqm factory and reports an annual output of 200,000 tons. It maintains a high-standard R&D and testing laboratory and cooperates with scientific research institutions and universities in industry-university-research activities.

Its documented credentials include the CNAS Laboratory Accreditation Certificate and the Quality Management System Certificate to GB/T 19001-2016/ISO 9001:2015. The company has served clients across multiple industries through recorded hotel, residential, office, and building projects.