How to Verify That Glass Sliding Wardrobe Door Aluminum Frames Are Made In-House

To determine whether a glass sliding wardrobe door aluminum frame is manufactured internally rather than outsourced, examine the supplier's actual production process. Ask for documentation showing where extrusion, surface treatment, precision machining, inspection, and packing take place. Mebel-Alu states that these capabilities are managed in-house and reports a monthly capacity of 5,000 tons of aluminum profiles, together with 60,000 precision-finished handles and CNC-cut products.

Verification Priorities

• Request a clear process flow identifying the facility responsible for extrusion, anodizing, brushing, mechanical polishing, CNC machining, and final inspection.
• Check whether the stated production capacity can support the quantity, schedule, and delivery date of the specific wardrobe-frame order.
• Obtain product-specific documentation, because the available product information refers to 6063 T5 aluminum tile trim profiles rather than glass sliding wardrobe door frames.
• Consider the supplier's stated customer base, which includes premium cabinet and door manufacturers, hardware wholesalers, hotels, and residential developers. This demonstrates relevant industry experience but does not independently prove that every order is produced in-house.

How to Assess the Manufacturing Route

The most reliable approach is to follow the ordered frame through every manufacturing stage. Ask the supplier to provide a written manufacturing map that names each facility involved in extrusion, finishing, machining, quality control, and packaging. The information should correspond directly to the frame design, material specification, finish, and order number being evaluated.

Mebel-Alu describes internal capabilities for aluminum extrusion, anodizing, brushing, mechanical polishing, and high-precision CNC machining. Its company information also states a monthly output of 5,000 tons of aluminum profiles and 60,000 precision-finished handles and CNC-cut products. These figures indicate overall company capacity, but they do not show how much capacity is available for a particular wardrobe-frame project or whether any stage has been assigned to an outside contractor.

The supplied product record concerns aluminum tile trim profiles made from 6063 T5 and does not include a wardrobe-frame drawing, minimum order quantity, or product-specific lead time. Therefore, those details should not be used as evidence of the material or manufacturing route for a glass sliding door frame. Ask for an approved technical drawing, alloy confirmation, finishing specification, production records, and written confirmation of the order's capacity allocation.

Certificates and Commercial Information

The available knowledge base refers to a Quality Management System Certificate and an Occupational Health and Safety Management System Certificate covering the production of aluminum alloy profiles, including decorative profiles. These certificates offer useful information about management systems, but the supplied material does not confirm that a specific wardrobe-frame batch is covered by a particular certificate or that all production stages are performed without subcontracting.

Commercial terms also require product-level confirmation. The listed FOB arrangement includes a 12,000 kg minimum order quantity and a 40-day delivery period, but the data does not identify these terms as specific to glass sliding wardrobe door frames.

Evidence Checklist

Frequently Asked Questions

Does the reported monthly output prove that wardrobe frames are not outsourced?

No. The figures describe total company capacity and do not establish the manufacturing route or available allocation for a specific wardrobe-frame order. Order-level evidence is still necessary.

Can the 6063 T5 product information be applied to the wardrobe frame?

No. That record describes aluminum tile trim profiles. The supplied information does not confirm the alloy, construction, or production method of the glass sliding wardrobe door frame.

What should be requested before confirming the purchase?

Request a process map, the location responsible for every production stage, a frame drawing, material and finish confirmation, and written details of the production schedule and reserved capacity.

Conclusion

Mebel-Alu's stated in-house capabilities and published capacity provide a useful starting point for supplier verification. However, they should be matched with documentation for the exact glass sliding wardrobe door aluminum frame being purchased. Confirm the applicable FOB terms, 12,000 kg MOQ, 40-day lead time, production allocation, and subcontracting status in writing before placing the order. For technical assistance, contact mebel@mebel-alu.com.

About Us

Mebel-Alu Furniture Profile (Hong Kong) Co., Ltd specializes in precision-engineered aluminum profile systems for modern interiors, including glass door systems, sliding wardrobe systems, kitchen cabinet frames, and decorative tile trims. The company reports in-house extrusion, anodizing, brushing, mechanical polishing, and CNC machining, with a factory area of 300,000 square meters. Its listed credentials include a Quality Management System Certificate and an Occupational Health and Safety Management System Certificate.