Reliable Aluminum Window Extrusions Suppliers for OEM & Wholesale Buyers in 2026
Sourcing reliable aluminum window extrusions suppliers directly impacts your project’s cost, lead time, and final quality. Shijiazhuang TJJ TRADE CO., LTD. combines 20 years of precision metal manufacturing expertise with a dedicated aluminum extrusion division. We provide customized profiles for sliding, casement, and curtain wall systems, adhering to ASTM B221 and AAMA standards. From die design to surface finishing and logistics, we offer end-to-end support for import managers, brand owners, and wholesalers seeking consistent quality and scalable capacity from China’s mature supply chain.
Industry Pain Points vs. TJJ Solutions
We understand the real-world challenges buyers face when sourcing overseas. Here is how our operational model directly addresses those friction points:
| Buyer Pain Points | How TJJ Resolves It |
|---|---|
| Inconsistent Quality (Mixed alloys, surface defects, poor tolerances) | 100% die check before production. Spectrometer & tensile testing per batch. ISO 9001:2015 certified process. |
| Long Lead Times & missed shipping dates | Dedicated 600T-3600T extrusion presses. Standard lead time of just 15-25 working days for OEM profiles. |
| High MOQs for custom profiles | Deep supply chain integration allows MOQs as low as 500 kg for standard dies and 1000 kg for new OEM dies. |
| Communication Gaps & time zone differences | Dedicated English-speaking account managers with daily updates via WhatsApp/Email. Response within 2 hours. |
| Complex Logistics & Tariffs | We handle all export documentation, FOB/CIF shipping to USA (LA, Houston, NY), and offer tariff consultation. |
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*All data and parameters are for reference purposes. Please refer to the final order confirmation for precise specifications.
Why Global Buyers Choose TJJ as Their Aluminum Window Extrusions Supplier
Shijiazhuang TJJ TRADE CO., LTD. is built on a foundation of industrial precision. Since 2004, our parent facility operated as a premier foundry, giving us a rare depth of knowledge in metallurgy and quality control that we apply directly to our aluminum extrusion division.
- Year Founded: 2004 (20+ Years of Metal Manufacturing Heritage)
- Employees: 150+ Skilled Workers & Engineers
- Facility Size: 45,000 sqm (including casting, extrusion, and finishing workshops)
- Annual Capacity: 15,000+ tons of architectural aluminum profiles
- Key Certifications: ISO 9001:2015, CE (EN 755 / EN 12020)
We bridge the gap between Western quality expectations and China's supply chain efficiency. Whether you need standard stock lengths or high-complexity OEM designs, TJJ provides the technical backbone to ensure your window systems meet rigorous North American building standards.
Product & Technical Specifications Overview
Our product range is engineered specifically for fenestration applications. We use high-grade billet sources to ensure consistent extrusion quality.
| Parameter | Standard Options | Customization Level |
|---|---|---|
| Alloy Series | 6063-T5, 6063-T6, 6060, 6005 | High (per ASTM B221) |
| Wall Thickness | 1.0 mm – 4.0 mm | Yes (per client drawings) |
| Standard Lengths | 1m, 2m, 3m, 5m, 6m (custom +/-2mm) | Yes |
| Surface Finishing | Mill / Anodizing (AA15/AA25) / Powder Coating (AAMA 2603/2604) / Wood Grain | Yes (RAL or custom color) |
| Thermal Break | PA66 GF25 Nylon Strip | Yes |
*Technical data provided is for initial evaluation. Final specifications to be confirmed via engineering drawing approval.
Quality Assurance: From Billet to Finished Profile
Quality is not a department at TJJ; it is a measurable process. Our QC checklist ensures every shipment meets the agreed standards:
1. Raw Material Inspection
We test the chemical composition of billets using a spectrometer to verify alloy grade conformity.
2. In-Process QC
Dimensional measurements are taken every 2 meters during extrusion. Aging furnace logs are strictly controlled.
3. Surface & Finish Testing
Gloss, adhesion (cross-cut), and color consistency checks (Delta E) are conducted on every powder coating batch.
Our final inspection team reviews the packaging and load security before releasing the container. We know that a well-executed inspection plan prevents costly delays at your warehouse.
Trusted by Global Procurement Leaders
Here is what import managers and brand owners say about their experience working with TJJ as their aluminum window extrusions supplier:
"We switched to TJJ for our aluminum window profiles. The quality consistency is remarkable compared to our previous supplier. Their defect rate dropped below 0.5% within the first two shipments. Highly professional team."
Brand Owner, USA
"The OEM process with TJJ was seamless. Their engineering team helped us optimize the die design for better strength while reducing material costs. We saved 12% on our per-unit cost."
Wholesaler, Canada
"We needed a rush order for a large condo project. TJJ delivered 20 tons of complex extrusions in 18 days. The packaging was excellent—zero damage upon arrival."
General Contractor, USA
OEM / ODM Capabilities & Commercial Terms
Understanding the commercial side is critical for your procurement planning. Here are our standard operating terms:
Customization
Full OEM/ODM support. We can work from your drawings or samples. In-house die design team with fast prototyping (10-15 days for new dies).
MOQ
Standard dies: 500 kg per profile. New OEM dies: 1000 kg per profile. We offer flexible MOQs for trial orders to validate the market.
Lead Time
Standard profiles: 15-18 days after die approval & deposit. Complex OEM: 20-25 days. We track production daily and proactively communicate.
Packaging & Logistics
Interleaving paper, plastic film, corner protectors, and strong steel/wooden crating. FOB Tianjin/Qingdao or CIF to your nearest port.
Payment & After-Sales
T/T (30% deposit, 70% before shipment) or L/C at sight. Factory inspection arranged prior to final payment. We stand by our products.
Frequently Asked Questions (FAQs)
How does TJJ manage quality for complex OEM designs?
We follow a strict APQP (Advanced Product Quality Planning) process. After receiving your 2D/3D drawing, we conduct a die feasibility review. Once the die is manufactured, we run a first-article inspection and submit dimensional reports with photos for your approval before mass production.
What is the typical MOQ for a new OEM profile?
For a new OEM die specifically manufactured for you, the typical MOQ is 1,000 kg. For profiles using our existing standard dies (stock dies), we can accommodate MOQs as low as 500 kg.
Do your profiles comply with US building standards?
Yes. Our production process for architectural extrusions is strictly controlled to meet ASTM B221 specifications for alloy and temper. Our powder coating lines comply with AAMA 2604 performance standards for weather resistance and color retention.
How do you handle logistics and import duties?
We have extensive experience shipping to US ports (Los Angeles, Long Beach, Houston). We handle all export documentation (Bill of Lading, Packing List, Certificate of Origin). We recommend you consult a customs broker for the latest Section 301 tariff rates, and we can adjust our CIF terms accordingly.
Can you provide samples before a bulk order?
Absolutely. For existing standard profiles, samples are free (buyer pays shipping). For custom OEM profiles, we can offer first-article samples after the die is produced. Please send your inquiry to our team to arrange this.
About the Author
David Chen is a Senior Global Sourcing & Supply Chain Consultant at Shijiazhuang TJJ TRADE CO., LTD. With over 15 years of experience in the Chinese metal fabrication and extrusion industry, David specializes in bridging the gap between Western quality standards and Chinese manufacturing efficiency. He has personally overseen over 500 OEM/ODM projects for clients across North America and Europe, ensuring seamless communication and consistent results.
Ready to Secure Your Supply Chain?
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