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Modern Patio Entry Thermal Break Aluminum Casement Door Double Toughened Glass Exterior Swing Doors Luxury Courtyard System
Product Description
LANGE is a "Top 10" system brand in China with independent intellectual property. Unlike generic local workshops, we are authorized service providers for international leaders like SCHUCO (Germany) and YKK (Japan). Our 20,000㎡ industrial park and 100+ professional designers guarantee a standard of precision that competitors cannot match.
Why Choose Us
01
Durable Aluminum Frame
High-strength aluminum profiles with optional thermal-break construction for improved durability and thermal performance.
02
High-Performance Glass
Clear, Low-E, tempered, laminated, and insulated glass options are available according to project requirements.
03
Reliable Sealing System
Professional sealing helps improve air and water resistance and supports long-term weather performance.
04
Customized Design
Size, glass configuration, frame color, surface finish, and opening method can be customized to suit different architectural requirements.
ADVANCED MANUFACTURING
LANGE operates a modern 20,000 m² manufacturing facility specializing in high-performance aluminum windows and doors. Equipped with advanced precision machinery, including the German Elumatec SBZ 628 CNC Processing Center and Sigma Fully Automatic Corner Crimping Line, our production system delivers precise machining, consistent corner joints, and reliable product quality for both customized and large-scale projects.
LANGE operates a modern 20,000 m² manufacturing facility specializing in high-performance aluminum windows and doors. Equipped with advanced precision machinery, including the German Elumatec SBZ 628 CNC Processing Center and Sigma Fully Automatic Corner Crimping Line, our production system delivers precise machining, consistent corner joints, and reliable product quality for both customized and large-scale projects.
Products Description
1
Durable Aluminum Frame
High-strength aluminum alloy provides excellent durability and structural stability for long-term use.
2
Excellent Sealing
Multi-point locking and high-quality seals help improve airtightness, sound insulation, and weather resistance.
3
Wide Opening
Hinged design provides a large opening area for better ventilation and easy access.
4
Energy Efficient
Optional thermal break profiles, double/triple glazing, and Low-E glass help improve thermal insulation and energy efficiency.
5
Secure & Reliable
Strong hardware and multi-point locking systems provide enhanced security and stable operation.
6
Customizable Design
Custom sizes, colors, glass types, hardware, and opening directions are available for different project requirements.
Product Parameters
01
CUSTOM SIZE
Non-standard dimensions can be customized according to your drawings, measurements, or project requirements.
02
GLASS OPTIONS
Choose from Clear, Low-E, Tempered, Laminated, and Insulated Glass to meet different lighting, thermal, and safety requirements.
03
OPENING SYSTEM
Available in Fixed, Manual, or Electric configurations according to ventilation and project requirements.
04
FRAME & COLOR
Aluminum profiles, frame dimensions, surface finishes, and RAL colors can be customized.
05
ACCESSORIES
Hardware, sealing components, and supporting accessories can be selected according to the skylight design and installation requirements.
06
PROJECT-BASED SOLUTIONS
Our technical team can develop the skylight configuration based on architectural drawings, site conditions, climate, and regional requirements.
Product Showcase
Main Markets: USA / Canada / Australia / New Zealand
Customer Feedback
✓ QUALITY MATERIALS
Carefully selected aluminum profiles, glass, hardware, and components to ensure reliable product performance.
✓ PRECISION PROCESSING
Advanced CNC processing helps achieve accurate dimensions, clean finishing, and consistent assembly.
✓ STRICT QUALITY INSPECTION
Quality checks are carried out throughout production, assembly, and final inspection to maintain consistent standards.
✓ PRE-SHIPMENT CHECK
Every order is inspected before shipment against the confirmed specifications and project requirements.
Quality Materials · Precision Processing · Strict Inspection · Reliable Performance
Company Profile
22+ YEARS OF MANUFACTURING EXPERIENCE
Professional experience in aluminum windows, doors, and architectural systems.
20,000 m² MANUFACTURING FACILITY
A modern integrated production facility with strong manufacturing capacity.
ADVANCED CNC EQUIPMENT
Equipped with imported CNC and automated production equipment from Germany, Italy, and Japan.
CUSTOMIZED SOLUTIONS
Customized dimensions, glass configurations, colors, finishes, and opening methods for different projects.
LARGE-SCALE PROJECT CAPACITY
Supporting large-volume and full-container orders with efficient production and reliable delivery schedules.
GLOBAL PROJECT SUPPORT
Serving customers across North America, Europe, Australia, New Zealand, the Middle East, and other international markets.
Frequently Asked Questions
Q1Are you a factory or a trading company?
We are a factory-direct manufacturer with 22+ years of experience. Our 20,000 m² facility in Zhengzhou, China is equipped with advanced CNC and automated production equipment, including the German ELUMATEC SBZ 628 CNC machining center.
Q2How does the ordering process work?
We provide professional support throughout the process: Inquiry → Quotation → Design Confirmation → Production → Inspection → Shipment → Delivery.
Q3What are your payment terms?
T/T: 30% deposit + 70% balance before shipment. L/C: 100% irrevocable L/C at sight. Other payment options can be discussed based on the order.
Q4Can the fixed panoramic window be customized?
Yes. We support customization of size, panel configuration, aluminum profiles, color, glass, and installation requirements. Drawings, dimensions, or site photos are welcome.
Q5Can you provide a solution based on our drawings?
Yes. Send us your drawings, dimensions, or project requirements, and our team can review them and recommend the appropriate profile, glass, hardware, and configuration.
Q6How do you ensure product quality?
We control quality from material selection and precision processing to assembly and final inspection. Each order is checked against the confirmed specifications before shipment.
