LANGE Eco Friendly Modern Fixed Window Aluminum Picture Window Argon Filled Energy Saving Window for Eco Villa

Product Description

Langetech maintains an annual production capacity of 500,000 SQM, providing stable and reliable factory-direct supply services.

Whether managing customized solutions for iconic landmark buildings or handling large-scale bulk orders, we offer essential BIM and CAD technical support to help you stand out in local bidding and successfully secure premium high-end projects.

Products Description
Product Description
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Reinforced thickened aluminum profile + multi-point locking system, stable & wind resistant
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Standardized production line, 100% batch inspection, uniform product quality
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Full customization support: size, color, glass, hardware, opening mode
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100% factory direct sales, flexible MOQ, big discount for bulk order
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Professional overseas technical team, 5-year official warranty, 24h online service
Why Choose Us
Why Choose Us

LANGE boasts a modern 20,000m³ manufacturing facility and is a global leader in high-performance window and door systems. We are equipped with world-class precision technology, including the German Elumatec SBZ 628 CNC Processing Center and the Sigma Fully Automatic Corner Crimping Line, ensuring every joint reaches micron-level accuracy.

LANGE Enterprise Equipment
LANGE Enterprise Equipment
  • Germany Elumatec 628 CNC Center: Original imported, remote-data automatic processing, high precision for window production.
  • Sigma Automatic Crimping Line: Fast crimping, finish one sash within 46s, high-volume production, stable lead time.
  • Japan Intelligent Stamping Machine: Original system with 500+ standard moulds, intelligent processing for all profiles.
  • Italy Fom CNC Equipment: Full imported machinery for window & curtain-wall manufacturing.

Full set imported CNC equipment. Support large-quantity project orders, reliable precision & stable delivery.

Our Advantages
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Commercial & Residential Folding Patio Door, Space-Saving, Soundproof, Waterproof, Thermal Insulation, Perfect for Villa, Balcony, Hotel, Office & Project Engineering.

Customer Feedback
Customer Feedback
Fixed Window Application Scenarios Villas, townhouses, coastal windy residences, commercial complexes and shopping malls, hotels and guesthouses, office buildings, exhibition halls and clubs
Note Fixed windows are ideal for large projects, but they cannot be used exclusively; they must be used in combination with operable windows.
Product Parameters
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Application Scenarios
Application Scenarios
Company Profile
Company Profile

Zhengzhou Lange Intelligent Technology Co., Ltd. is a leading integrated enterprise specializing in high-performance system windows and Intelligent Space/Sleep Pods. With 22 years of engineering excellence and 80+ sets of CNC equipment, we maintain a 500,000 SQM annual capacity. As a strategic partner of YKK, LIXIL, and LG, we cross-apply premium insulation technology to our "Plug-and-Play" space pods for glamping and commercial use. Guided by craftsmanship, we turn customer expectations into reality with integrity and precision.

Factory Overview 1
Factory Overview 2
Frequently Asked Questions
Q1 Are you a direct manufacturing factory?

Yes, we have our own manufacturing factory with over 22 years of industry experience, located in Zhengzhou, Henan Province, equipped with modern production facilities.

Q2 How does the process work if this is my first time sourcing from China?

Do not worry. With over 20 years of global export experience, we provide complete, transparent technical and order handling support through the clear steps: Order → Production → Quality Inspection → Shipment → Delivery.

Q3 What payment terms and payment methods are accepted?

We support standard payment terms such as 100% advance or a 30% T/T deposit with the remaining 70% balance settled before shipment, as well as 100% irrevocable L/C at sight. We accept T/T (Wire Transfer), online transfer, Credit Card, VISA, PayPal, and Apple Pay.

Q4 How long is the delivery cycle and production lead time?

Delivery time depends on the specific dimensions, glass configuration, color selection, hardware, customization requirements, and project volume. Upon confirmation of designs, specs, and payment, we will deliver an accurate production schedule.

Q5 Can the aluminum fixed windows be customized to project specifications?

Yes. Structural dimensions, panel counts, opening methods, glass specifications, surface color finishes, lock hardware, and track types are fully customizable. Provide doorway dimensions, layout drawings, and on-site details to receive a customized structural plan.

Q6 What warranty and technical assistance are guaranteed?

We provide a 5-year official warranty, full BIM/CAD engineering support for project bidding, 100% factory batch inspection, and 24/7 online overseas technical service.

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