China Best Aluminum Outside Door Manufacturers & Factory

Advanced Engineering, Thermal Efficiency, and Global Architectural Excellence

Premium Product Showcase

OUNA Fully Customizable Luxury Garage Door

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OUNA NFRC High Track Bi-Fold Glass Wall

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OUNA Minimalist Aluminum Alloy Folding Window

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OUNA Modern Exterior Balcony Bifold Doors

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OUNA European Residential Aluminum Front Entry

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OUNA Residential House Apartment Door

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OUNA Sunshine Breakfast Corner Skylight

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OUNA Hurricane Impact Aluminum Sliding Windows

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Industry Authority & Technical Expertise

Tianjin Kross Window & Door Technology Co., Ltd. (est. 2015) represents the pinnacle of Chinese aluminum manufacturing. With over 35,000 sqm of production space, we synthesize 11 years of structural expertise with global market demands. Our E-E-A-T compliant operations ensure that every client—from facade contractors in Western Europe to villa developers in North America—receives precision-engineered solutions backed by rigorous NFRC/CE certifications.

Our R&D team of 58 engineers drives a continuous innovation cycle, having launched 65 new designs in the last fiscal year. By utilizing thermal break technology and acoustic glazing, we don't just sell doors; we deliver comprehensive architectural performance packages.

Global Procurement & Technical Roadmap

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Global Standards

Compliance with AS2047, NFRC, and CSA standards ensuring seamless integration into international projects.

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Thermal Efficiency

Advanced thermal break profiles reducing energy consumption by up to 40% in residential applications.

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Quality Assurance

42 dedicated QC technicians conducting hydrostatic and structural load testing on every batch.

Frequently Asked Questions (FAQ)

Q: Why choose aluminum for exterior doors in harsh climates?

A: Aluminum offers superior corrosion resistance, structural integrity against high-velocity winds (Hurricane Impact rated), and maintains aesthetic stability across extreme temperature fluctuations compared to wood or PVC.

Q: How does Kross ensure global quality compliance?

A: Our facility integrates automated CNC systems for precision. We maintain an 850+ supply chain network and perform 100% trial installations before shipment to guarantee site-readiness.

Additional Product Highlights

OUNA Black Grid Aluminum Double Door

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OUNA Black Powder Coated Window

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OUNA Hurricane Impact Folding Window

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OUNA Modern Heavy Duty Sliding Door

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OUNA Modern Aluminum Skylight

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OUNA England Project CE French Door

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OUNA Customized Thermal Break Windows

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OUNA American Aluminium Folding Doors

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