1 / 5
LANGE High Quality Aluminum Tilt and Turn Windows Double Glazed Thermal Insulation Energy Saving Inward Opening Window for House
Product Description
Products Description
√
Reinforced thickened aluminum profile + multi-point locking system, stable & wind resistant
√
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.
Our Advantages
Product Showcase
Our factory accepts large-volume full-container orders with abundant production capacity and stable lead time. The workshop is fully equipped with imported CNC production equipment. Precision automatic processing covers profile cutting, corner combining, milling and sealing assembly, leading to tiny dimensional tolerance and consistent workmanship across all batches. Stable unified quality reduces installation waste and after-sales risks perfectly, ideal for long-term cooperation on residential apartment and community window projects.
Factory direct supply, customizable, engineering/wholesale available, flexible parameters, OEM support, quick quotes.
Product Parameters
Supports multiple opening methods, offering flexibility to meet diverse spatial needs. From fixed windows to micro-ventilation options, each model opens up new possibilities for your lifestyle.
| Product Name | Tilt and turn window / European tilt and turn window |
| Dual activation mode | Inward opening + inward tilt |
| Functions | The inward-opening mode is suitable for high-rise safety, does not occupy outdoor space, provides sound and heat insulation, and offers excellent airtightness, watertightness, and wind pressure resistance. |
| Advantages of Bulk Supply and Cooperation | High-volume order acceptance capacity; Flexible customization; Reputation and repeat purchases. |
Customer Feedback
Benefiting from consistent quality, mass production capacity supported by imported precision equipment and reliable supply service, we have accumulated countless cooperative clients worldwide with numerous genuine verified buyer reviews. A large number of dealers and construction contractors keep placing repeat orders. Our reputation has been verified by massive orders and overseas on-site projects. Our windows are widely recognized for retail restocking and large-scale residential construction projects alike.
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.
FAQ
Q1
Are you a factory?
Yes, we have our own factory with over 22 years of experience. We are located in Zhengzhou, Henan Province.
Q2
As it is my first time shopping online from China, how does the operation work?
No worries. We have over 20 years of export experience worldwide and full professional support to guide you through every step: Order → Production → Shipment → Delivery.
Q3
How about the payment terms and methods?
We support 100% in advance, or a deposit in advance with the balance before shipment. We accept TT (Wire transfer), online transfer, Credit card, VISA, Paypal, Apple Pay, and L/C at sight.
Q4
What are your standard payment options for production orders?
T/T: 30% deposit, with the 70% balance paid before shipment. L/C: 100% irrevocable L/C at sight.
Q5
How long is the delivery cycle?
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.
Q6
Can products be customized according to project requirements?
Yes. Doorway dimensions, number of panels, opening direction, glass configuration, color, lock type, and track type can all be customized. Please provide the doorway width, height, installation location, and on-site photos before placing an order, and we will calculate a solution based on the actual dimensions.
