From design detailing to delivery—providing stable system window solutions for global contractors, distributors, and brand clients.
Factory Strength
20
Years of manufacturing experience
Exported to 50+ Countries
Ultimate sound insulation and thermal insulation, with a 45dB noise reduction effect suitable for projects in downtown areas and along airport routes.
Aluminum Series System Windows with Thermal Break Design
Ultimate sound insulation and thermal insulation, with a 45dB noise reduction effect suitable for projects in downtown areas and along airport routes.
2400Pa wind pressure resistance design, suitable for high-rise residential buildings, hotels, and commercial buildings.
IP68 waterproof sealing + EPDM weather-resistant rubber strips, fearless of extreme weather, with stable performance for 10 years.
2400Pa wind pressure resistance design, suitable for high-rise residential buildings, hotels, and commercial buildings.
IP68 waterproof sealing + EPDM weather-resistant rubber strips, fearless of extreme weather, with stable performance for 10 years.
Supports design detailing and OEM/ODM customization services.
Fast Shipping to Ensure Project Timelines
Supports design detailing and OEM/ODM customization services.
From sample confirmation to bulk delivery, we help make engineering procurement and installation more efficient.
FOB/CIF/DDP multiple delivery methods, covering major global ports.
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Thermal Break Insulation System
PA66 Thermal Break Strip
High Wind Pressure Resistance
45dB Sound Insulation
U-Value 1.1 W/m²K
OEM / ODM Customization
Global Delivery
Structural Engineering
Thermal Break Insulation System
PA66 Thermal Break Strip
High Wind Pressure Resistance
45dB Sound Insulation
U-Value 1.1 W/m²K
OEM / ODM Customization
Global Delivery
Structural Engineering
Aluminum Alloy Door & Window Product Line
All Products →
Products
Products
Aluminum Alloy Door & Window Product Lines
01
55 Series Single-Open Aluminum Alloy Window
The product is a 55-series single-open aluminum alloy window, with a reference configur…
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02
80 Series Single-Open Aluminum Alloy Window
This 80-series single-opening aluminum alloy window uses 6063-T5 aluminum alloy profile…
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03
80 Series Heavy-Duty Single-Open Aluminum Alloy Window
This product is an 80 series thickened single-opening aluminum alloy window, with refer…
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04
90 Series Single-Swing Aluminum Window
This product is a 90 series single-opening aluminum alloy window, made of 6063-T5 alumi…
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05
90 Series Heavy-Duty Single-Open Aluminum Alloy Window
This product is a 90-series thickened single-open aluminum alloy window, with a referen…
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06
93 Series Single-Open Aluminum Alloy Window
This 93 series single-opening aluminum alloy window is specially designed for overseas…
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What can we offer to different clients?
01 / Builder & Contractor
If you are:
If you are:
Builder or Contractor
Facing tight project schedules, frequent drawing changes, and high coordination difficulty—we understand.
We can get involved early in the project, working with you to complete window type configuration, profile structure confirmation, glass solution optimization, and node drawing detailing. First confirm samples, then arrange batch production, reducing rework and changes during the construction phase.
Suitable project types: Apartment buildings, hotels, villas, commercial complexesService content:
Suitable project types: Apartment buildings, hotels, villas, commercial complexesService content:
- Window Configuration & Node Drawing Detailing
- Performance data, sample confirmation, and batch delivery coordination
- Adapts to different wind pressure requirements for high-rise and low-rise buildings
Contact Us
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Learn More Distributor & Agent
If you are:
If you are:
Agent and Distributor
Dealers require us to provide stable supply, consistent quality, and controllable profit margins
We support OEM/ODM brand customization; colors, hardware, and packaging can all be produced according to your brand requirements. Quick confirmation of sample rooms, stable batch supply, helping you establish product differentiation in the local market.
We support OEM/ODM brand customization; colors, hardware, and packaging can all be produced according to your brand requirements. Quick confirmation of sample rooms, stable batch supply, helping you establish product differentiation in the local market.
- OEM/ODM Brand Customization (MOQ 10㎡)
- Customization services for colors, hardware, and packaging
- Synchronized export packaging and shipping documents
Contact Us
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0Measurement & Installation Guidance Measurement & Installation Guidance
If you are:
If you are:
Individual Homeowner
Measurement & Installation Guidance
Measurement & Installation GuidanceThis article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.Showroom with video viewing, on-site consultation, and scheme comparison.
One-on-one follow-up by our business team, providing full guidance from dimension measurement to scheme confirmation, so you can buy with clarity and install with peace of mind.
- Measurement & Installation Guidance
- Measurement & Installation Guidance
- Measurement & Installation Guidance
Contact Us
View Products
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
Why choose us?
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
System R&D · Performance Compliance
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
This article will systematically break down the quotation structure of the 90 Series single-opening aluminum alloy window, from visible hardware to hidden service costs, helping you understand the root causes of differences in various quotations. Mastering this framework enables you to effectively evaluate supplier proposals and make more precise budget and configuration decisions.
| Comparison Dimension | Regular Trading Supplier | Qinhan System Windows & Doors |
|---|---|---|
| Factory Capability | Tends towards order transfer and inquiries, with production details being uncontrollable. | Owns processing, manufacturing, and sample display, making product structure, craftsmanship, and delivery schedule more controllable. |
| Solution Confirmation | Only quotes based on model number, easily overlooking project conditions. | First, review drawings, dimensions, opening methods, performance targets, and application scenarios. |
| Configuration Support | Profiles, glass, hardware, colors, and packaging confirmed separately. | Profiles, glass, hardware, colors, packaging, and documentation confirmed simultaneously. |
| Delivery Follow-up | Issues are temporarily transferred, making information prone to gaps. | Business, technology, production, and quality control are divided and followed up, making the milestones clearer. |
| Export Support | Packaging, documentation, and after-sales coordination are unstable. | Supports export packaging, documentation synchronization, sample prototyping, and OEM/ODM customization. |
Detail Showcase
We will fully present our door and window factory's product types, profile structures, performance configurations, production processes, quality inspection milestones, and export coordination to help you determine if the product matches your project requirements before inquiry.
We don't assemble parts; we build systems. We adopt an integrated structural design, with air tightness, water tightness, and wind pressure resistance all passing authoritative inspections, providing a truly systematic solution for buildings.
Stable Capacity · Reliable Delivery
Monthly production capacity: doors and windows 20,000㎡+, sunrooms 5,000㎡+. Sufficient raw material inventory, standard orders delivered within 15-20 days, urgent orders can be negotiated for expedited production. Large-scale production ensures no delays for large orders and no omissions for small ones.
- Export Experience · Tailored SolutionsProducts are exported to over 30 countries including Europe, Southeast Asia, and the Middle East. Familiar with international standards (EN, ASTM, BS) and export procedures, supporting FOB/CIF/DDP, ensuring worry-free shipping.
- Flexible Customization · Long-term PartnershipSupport ODM/OEM, minimum order quantity negotiable, one-on-one project coordination. Aims to build long-term mutual trust with every partner, rather than just a one-time transaction.
- Comparison DimensionRegular Trading Supplier
Qinhan System Windows & DoorsYears
of door and window manufacturing experience
System Windows · Sliding Doors · Curtain Walls
Solution Confirmation㎡
production base
Integrated processing and manufacturing
Profiles, glass, hardware, colors, and packaging confirmed separately.㎡
sample showroom
System window and profile display
Business, technology, production, and quality control are divided and followed up, making the milestones clearer.
customization support
Color · Hardware · Packaging · Materials
About Us
We are not a trading company; we are a brand factory.
We are an aluminum alloy door and window factory with 20 years of manufacturing experience, located in Shaanxi Province, China. We do not subcontract orders. Every window is completed in our own workshop, from aluminum alloy profile testing, precision CNC cutting, whole window assembly, to finished product inspection.
Export quality complies with the EN 14351-1 standard, covering thermal break windows, heavy-duty sliding doors, curtain walls, and facade supporting products. We use project drawings, profile samples, glass configurations, hardware solutions, and packaging requirements as the basis for communication, helping clients clarify product direction, performance boundaries, and delivery conditions before inquiry.
From sample procurement, small-batch trial orders to project bulk supply—Qinhan provides stable OEM/ODM customization support for global engineering contractors, distribution channels, and door and window brands.
Learn More →
Performance Indicators
Confirm performance boundaries before project procurement.
1.1W/m²K
Heat Transfer Coefficient
Complies with EN 14351-1
of door and window manufacturing experienceSystem Windows · Sliding Doors · Curtain Walls
Sound Insulation Rating
Rw + Ctr combined configuration
production baseIntegrated processing and manufacturing
Wind Pressure Resistance
Suitable for high-rise and strong wind environments
sample showroomSystem window and profile display
Frame Depth
93 Series Thermal Break Structure
Color · Hardware · Packaging · MaterialsYears
Seal Lifespan
EPDM Sealing System
Export quality complies with the EN 14351-1 standard, covering thermal break windows, heavy-duty sliding doors, curtain walls, and facade supporting products. We use project drawings, profile samples, glass configurations, hardware solutions, and packaging requirements as the basis for communication, helping clients clarify product direction, performance boundaries, and delivery conditions before inquiry.
Projects Covered
Countries & Regions Served
Factory
Qualifications, production, assembly, packaging,all revolve around project delivery.
12,000m²
production base
Suitable for high-rise and strong wind environments
Showroom
20 Years
Design Team
The factory will clearly break down product configurations, performance requirements, packaging methods, and delivery timelines in advance.
Reduce time loss from repeated confirmations in overseas projects
Mass production after sample confirmation
Key milestones include profile processing, machining, corner assembly, glass configuration, finished product inspection, and export packaging.
EPDM Sealing System
TestingAluminum Profile Production & SelectionCountries & Regions Served
ProcessingCNC Cutting & Machiningall revolve around project delivery.
AssemblyWindow Assembly & QCAssembly
CustomizationOEM / ODM SupportProfiles, glass, and hardware are confirmed in advance.
DocumentsEngineering Files & Node DiagramsCertifications
DeliveryFOB / CIF / DDPproduction base
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Team Showcase
Core Members
Core Members
Covering inquiries, proposals, production, and delivery.
From initial drawing communication to final pre-shipment review, customers can find a dedicated point of contact for each step. Someone is following up at every stage, ensuring clearer information and more stable delivery.
Key milestones include profile processing, machining, corner assembly, glass configuration, finished product inspection, and export packaging.Overseas BusinessOverseas Business Consultant
We respond quickly to your inquiries, help you sort out project requirements, coordinate internal resources, and prepare quotation documents.
——Making project initiation smoother.
ProcessingTechnical SupportSystem Solution Engineer
We understand your project drawings, confirming the profile structure, glass configuration, hardware solutions, and performance parameters — reducing communication and rework.
Window Assembly & QCProduction TrackingProduction Tracking & Scheduling
We closely monitor the schedule and delivery dates, notifying you in advance at each key milestone — making batch production predictable.
04Quality Control & ShippingQuality Control & Shipping Review
Pre-shipment Door-by-Door Inspection:
(Airtightness, watertightness, appearance, dimensions),
Ensuring the goods you receive match the confirmed samples
Need a customized door and window solution for a construction project?
Send drawings, dimensions, or project requirements. Haipai Chuang can provide product selection, structural detailing, sample prototyping, and OEM/ODM customization support.