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.
Standardized production line, 100% batch inspection, uniform product quality
Full customization support: size, color, glass, hardware, opening mode
100% factory direct sales, flexible MOQ, big discount for bulk order
Professional overseas technical team, 5-year official warranty, 24h online service
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.
Product Showcase
Main Markets: USA / Canada / Australia / New Zealand
Product Parameters
For bulk orders, we can customize hardware handrails according to your project requirements.
LANGE offers an aluminum frame glass door customization service, capable of processing non-standard sizes according to drawings. Glass, opening systems, and supporting components can all be flexibly selected. Imported CNC equipment ensures processing precision, supports batch customization, and can adapt to the acceptance standards of various regions.
Customer Feedback
LANGE Project Case: Southeast Asian detached villa community project, bulk purchase of aluminum alloy entrance doors and double entrance doors, unified process standards, stable delivery time, bulk discount pricing, standardized packaging, and provision of installation guidance drawings.
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.
Frequently Asked Questions
Q: Are you a factory?
A: Yes, we have our own factory with over 22 years of experience. The factory is located in Zhengzhou, Henan Province.
Q: As this is my first time shopping online from China, how about the operation process?
A: No worries! We have over 20 years of export experience to clients all over the world. We offer professional step-by-step guidance to ensure a smooth purchasing process: Order → Production → Shipment → Delivery.
Q: What are your payment terms and methods?
A: We support 100% in advance, or a deposit in advance with the balance paid before shipment (e.g., T/T 30% deposit, 70% balance before shipment; or 100% irrevocable L/C at sight). Accepted methods include T/T (Wire Transfer), online transfer, Credit Card, VISA, PayPal, Apple Pay, and L/C at sight.
Q: How long is the delivery cycle?
A: 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, we will provide a formal production plan. For customized projects, it is recommended to allow sufficient time for production, quality inspection, and shipping.
Q: Can this product be customized?
A: 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.