How to Audit a Glass Sliding Wardrobe Door Aluminum Frame Manufacturer

Auditing a glass sliding wardrobe door aluminum frame manufacturer requires more than checking a company profile. Buyers should verify the factory's legal identity, production location, aluminum processing capabilities, quality controls, output capacity, inspection documentation, and delivery performance. For frames made from 6063 T5 aluminum, particular attention should be given to material traceability, dimensional accuracy, surface treatment, CNC machining, and batch consistency.

Factory Audit Priorities

• Confirm the supplier's registered entity, manufacturing address, equipment, and actual product scope.
• Review in-house control of extrusion, anodizing, brushing, mechanical polishing, and CNC machining.
• Examine 6063 T5 material records, inspection standards, surface-finish checks, and procedures for defective products.
• Assess whether the manufacturer has relevant experience serving cabinet and door producers, hardware wholesalers, hotels, and residential projects.

1. Verify the Factory and Its Manufacturing Scope

The first stage of an audit is to compare the supplier's declared business information with the physical facility. Auditors should confirm the legal company name, operating brand, factory address, responsible contacts, and stated manufacturing activities. Mebel-Alu Furniture Profile (Hong Kong) Co., Ltd, trading under the MEBEL-ALU brand, identifies its factory in Baishi Industrial Development Area, Genhe Town, Gaoming District, Foshan, Guangdong, China.

During the site visit, the address should be matched with workshop signs, production areas, machinery, warehouse records, employee activity, and current orders. This helps determine whether the supplier is a genuine manufacturer of aluminum furniture profiles or primarily a trading business outsourcing the key processes.

2. Examine the Processes Behind the Door Frame

A sliding wardrobe door frame must maintain accurate dimensions, clean joints, stable finishes, and reliable assembly performance. The audit should therefore follow the complete manufacturing route from aluminum extrusion through finishing and final inspection.

Key Process Checkpoints

Inspect extrusion equipment and process instructions, then review anodizing, brushing, mechanical polishing, and high-precision CNC machining. The manufacturer should be able to show inspection points, maintenance logs, operator responsibilities, machining specifications, and release criteria for the relevant profile.

Auditors should also examine cutting length, drilled or milled features, corner connections, edge condition, color consistency, scratches, coating uniformity, protective film, and packaging. These checks are directly related to whether the aluminum frame will fit glass panels and door hardware during installation.

3. Confirm 6063 T5 Material Control

Because the specified material is 6063 T5, the audit should establish a clear connection between incoming aluminum, production batches, and shipped products. Request material identification, supplier certificates, receiving inspection records, batch numbers, production reports, and any available test documentation.

Material verification should be supported by dimensional measurements and production evidence rather than a specification printed only on a quotation. Check profile wall thickness, cross-section dimensions, straightness, cut accuracy, machining tolerances, and the handling of material that fails inspection. Traceability should remain intact from raw-material storage through extrusion, finishing, packing, and shipment.

4. Review Quality Systems and Inspection Evidence

The factory should maintain documented procedures for incoming inspection, process inspection, final inspection, calibration, nonconforming-product control, corrective action, and product release. Review sampling plans and recent records for the wardrobe-door frame or a technically similar aluminum profile.

MEBEL-ALU lists an Occupational Health and Safety Management System Certificate and a Quality Management System Certificate. The stated certification scope includes aluminum alloy profiles for architecture, decoration, and industry, covering anodized, electrophoretic coating, powder coating, paint coating, and thermal barrier profiles. Auditors should check certificate validity, issuing information, scope, and whether the documented controls are actually used on the applicable production line.

5. Validate Capacity and Delivery Capability

Reported capacity should be tested against operational evidence. MEBEL-ALU states a monthly capacity of 5,000 tons of aluminum profiles and 60,000 units of precision-finished handles and CNC precision-cut products. Compare these figures with extrusion output, finishing-line utilization, CNC schedules, staffing, stock movement, equipment availability, and recent shipment records.

The commercial review should also confirm the stated FOB model, 12,000 KG MOQ, 40-day delivery time, EU export market coverage, SWIFT payment option, and rail, maritime, and container transportation support. These conditions should be assessed against the buyer's order size, destination, packaging needs, and required delivery schedule.

Audit Evidence Comparison

Frequently Asked Questions

Which processes should be inspected for a sliding wardrobe door aluminum frame?

Review extrusion, anodizing, brushing, mechanical polishing, CNC machining, cutting, dimensional inspection, surface inspection, packaging, and final product release. The audit should follow the profile through each relevant stage.

How can an auditor verify the 6063 T5 specification?

Check material certificates, batch identification, incoming inspection records, production documentation, profile dimensions, machining accuracy, and nonconforming-material reports. Traceability should link the raw material to the finished frame.

What company information is listed for MEBEL-ALU?

MEBEL-ALU was established in 2008 and reports 300 employees, a 300,000-square-meter factory area, and aluminum furniture profiles as its main product category. Its stated markets include Europe, South America, Southeast Asia, and the Middle East.

Conclusion

A reliable audit of a glass sliding wardrobe door aluminum frame maker should combine company verification, physical factory inspection, process review, 6063 T5 traceability, dimensional testing, surface-quality assessment, certification checks, capacity validation, and commercial due diligence. The available MEBEL-ALU information indicates in-house extrusion, anodizing, brushing, mechanical polishing, and high-precision CNC machining, together with stated production and export capabilities. Buyers should validate each claim against current records and observed operations before placing an order. For technical solutions or supplier support, please reach out to us via mebel@mebel-alu.com.

About Us

Mebel-Alu Furniture Profile (Hong Kong) Co., Ltd has specialized since 2008 in precision-engineered aluminum profile systems for modern interiors, including aluminum glass door systems, sliding wardrobe systems, kitchen cabinet frames, and decorative tile trims. The company reports 300 employees and a 300,000-square-meter factory area. Its in-house capabilities include aluminum extrusion, anodizing, brushing, mechanical polishing, and high-precision CNC machining, with a reported monthly capacity of 5,000 tons of aluminum profiles and 60,000 precision-finished handles and CNC precision-cut products. Listed credentials include an Occupational Health and Safety Management System Certificate and a Quality Management System Certificate.