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LANGE Aluminum Double Glass Casement Window Aluminum Alloy Thin Profile Aluminium Windows and Doors Casement Window
Product Description
Product Highlights
Tilt-and-Turn Mechanism
Allows rain-proof ventilation and maximum space utilization for high-rise buildings.
High-Quality Aluminum
Durable and energy-efficient, meeting EU/US standards for performance.
Multi-Point Safety Lock
Ensures enhanced security and anti-intrusion protection.
Tempered Safety Glass
Reduces impact risk and prevents injury, offering superior safety.
Air-Tightness
Up to Class 4, providing reliable weather resistance.
Scene Image
Detail Shot
About The Supplier
LANGE is a direct source factory for aluminium windows, doors, sunrooms and modular space pods in Zhengzhou, Henan. Our 20,000 square meter base runs 80+ CNC machines, a German Elumatec SBZ 628 centre and a fully automatic corner-crimping line, supporting 500,000 square meters of annual capacity on 2 lines. MOQ from 2 square meters, prices US$77-168 per square meter, OEM/ODM with BIM and CAD support, AS2047/NFRC-oriented testing, 5-year warranty, shipment from Qingdao, Tianjin or Shanghai.
Production Workflow
Customization Capabilities
Competitive Advantages
Frequently Asked Questions
Q1
Whether are you a factory?
Yes, we have our own factory with over 22 years of experience. The location is in Zhengzhou, Henan Province. For first-time shoppers online from China, there is no need to worry—we have over 20 years of export experience worldwide, providing professional support through each step: Order, production, shipment, and delivery.
Q2
What are your payment terms and how to pay?
T/T: 30% deposit via T/T, with the remaining 70% balance paid before shipment. We also accept 100% irrevocable L/C at sight.
Q3
Can this panoramic sliding door and window system be customized in size?
Yes. Doorway dimensions, number of panels, opening direction, glass configuration, color, lock type, and track type can all be customized according to project requirements. Please provide the doorway width, height, installation location, and on-site photos before placing an order so we can calculate a tailored solution.
Q4
What is the typical production and delivery schedule?
Delivery time depends on size, glass configuration, color, hardware, level of customization, and order quantity. Once the design, payment terms, and technical specifications are confirmed, a formal production plan will be provided. It is recommended to allow sufficient lead time for manufacturing, quality inspection, and freight shipping.
Q5
What is your Minimum Order Quantity (MOQ) and warranty?
Our minimum order quantity starts from 2 square meters. We provide a comprehensive 5-year warranty alongside AS2047 and NFRC-oriented testing standards to guarantee optimal structural integrity and energy efficiency.
Q6
Which shipping ports do you operate from?
Orders are securely packaged and dispatched directly from primary international shipping ports in China, including Qingdao, Tianjin, and Shanghai.
