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Ready to Install Aluminum Sliding Window Modular Design Pre-Assembled Frame Exterior Glass Windows for DIY Home Project
Product Description
LANGE — Professional Aluminum Window & Door Solutions
LANGE is a Top 10 system window brand in China, with independent intellectual property and extensive expertise in aluminum window and door systems.
With a 20,000 m² manufacturing facility and a professional team of 100+ designers, we combine advanced manufacturing capabilities with international design standards.
As an authorized service provider for leading brands including SCHÜCO (Germany) and YKK (Japan), LANGE provides precision-engineered and customized window and door solutions for residential, commercial and architectural projects worldwide.
Products Description
Project-Oriented Customization & Performance
Stable Production Capacity
Reliable manufacturing capacity for large-scale projects and bulk orders.
Custom Sizes & Opening Configurations
Non-standard dimensions and opening methods can be customized according to architectural drawings.
Flexible Track Systems
Double-track and triple-track options are available to meet different space and design requirements.
Reliable Sealing Solutions
High-quality hardware and sealing accessories help achieve reliable air and water tightness.
Flexible Glass Options
Insulated, Low-E, laminated and other glass configurations are available for different performance requirements.
Customized Profile Finishes
A wide range of colors and surface finishes is available for coordinated façade design.
Why Choose Us
22+ YEARS OF MANUFACTURING EXPERIENCE
Over 22 years of experience in aluminum windows, doors and architectural systems, with expertise in customized solutions for residential and commercial projects.
20,000 m² MANUFACTURING FACILITY
A modern integrated production facility providing stable manufacturing capacity for both standard products and large engineering orders.
ADVANCED CNC EQUIPMENT
Equipped with advanced CNC and automated production equipment from Germany, Italy and Japan to support precise and efficient manufacturing.
CUSTOMIZED SOLUTIONS
Customized dimensions, glass configurations, colors, finishes and opening methods to meet different architectural and project requirements.
LARGE-SCALE PROJECT CAPACITY
Capable of handling large-volume and full-container orders with efficient production planning and reliable delivery schedules.
GLOBAL PROJECT SUPPORT
Serving distributors, contractors and project clients across North America, Europe, Australia, New Zealand, the Middle East and other international markets.
LANGE In-House Production Base for Large Engineering Projects
LANGE operates an in-house production base with stable manufacturing capacity, enabling us to handle bulk orders for sliding windows and customized window systems.
Advanced processing equipment, standardized production procedures and strict quality control help maintain consistent processing precision and stable product quality, supporting reliable on-time delivery for large-scale projects.
Product Showcase
Flexible Sliding Windows for Different Spaces
LANGE sliding windows can be customized to suit different spaces, architectural styles and project requirements.
Available in customized sizes, profile colors and glass configurations, they are suitable for living rooms, kitchens, offices and other applications.
Whether for single-family homes, apartment renovations, commercial buildings or construction projects, LANGE provides flexible sliding window solutions tailored to the project.
Product Parameters
Premium Hardware for Long-Term Performance
LANGE sliding windows can be equipped with high-quality German-brand hardware, featuring excellent strength and corrosion resistance.
Designed for frequent opening and closing, the hardware provides smooth and stable operation while helping extend the service life of the window system.
Hardware configurations can be selected according to different window types and project requirements, helping meet the long-term usage demands of residential and commercial applications.
Smooth & Reliable Sliding Performance
LANGE sliding windows are designed with multiple details for reliable daily performance.
Concealed Vertical Drainage
Helps guide rainwater away and reduce the risk of water infiltration.
Misoperation Prevention Lock
Helps prevent incorrect operation and enhances everyday safety.
Stainless Steel Bottom Track
Provides a durable and wear-resistant sliding surface for long-term use.
Silent Pulleys
Ensure smooth and quiet sliding with reduced operating noise.
Designed for Smoothness. Built for Long-Term Performance.
Customer Feedback
Trusted by Global Engineering Clients
LANGE sliding windows are chosen by distributors, contractors and engineering clients in international markets.
Stable product quality, flexible customization, professional project support and reliable production capacity make LANGE a dependable partner for large-volume residential and commercial projects.
From product configuration and customization to production and delivery, we continuously optimize our products and services to support the needs of international construction projects.
Company Profile
Global Logistics & Secure Delivery
LANGE supports multiple transportation methods, including sea freight, railway and truck delivery, according to different project requirements.
Sliding windows are professionally packed with reinforced protective materials and carefully loaded to reduce the risk of damage during transportation.
Based on the project schedule, destination and shipment requirements, we can help arrange a suitable logistics solution and coordinate delivery to ensure bulk orders arrive safely and on time.
Professional Sliding Window Solutions for Global Projects
22+ Years Manufacturing Experience
20,000 m² Manufacturing Facility
500,000 m² Annual Production Capacity
Advanced CNC Manufacturing
SCHÜCO & YKK Authorized Service Provider
Customized Project Solutions
Stable Bulk Order Capacity
Global Delivery Support
Your Project. Our Expertise.
Frequently Asked Questions (FAQ)
Q1: Are you a factory or a trading company?
A: 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 German ELUMATEC SBZ 628 CNC machining centers.
Q2: This is my first time buying from China. How does the process work?
A: No worries. With 20+ years of export experience, we provide professional support throughout the entire process: Quotation → Design → Production → Quality Inspection → Shipment → Delivery.
Q3: What are your payment terms?
A: Our standard terms are: T/T: 30% deposit, 70% balance before shipment. L/C: 100% irrevocable L/C at sight. Other payment methods may be available depending on the order and transaction terms.
Q4: What is the delivery time?
A: Lead time depends on order quantity, size, glass configuration, color, hardware, and customization. We will provide a confirmed production schedule after the specifications and order details are finalized.
Q5: Can the aluminum fixed panoramic window be customized?
A: Yes. We can customize the size, panel configuration, aluminum profile, color, glass configuration, and installation requirements according to your project. Please provide the required dimensions, installation location, and drawings or site photos if available.
Q6: Do you accept large-volume or project orders?
A: Yes. Our advanced production equipment supports large-volume and full-container orders, with consistent quality and reliable production capacity.
