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China Steel Lined PVC Composite Windows Manufacturer, Supplier, Factory
When selecting high-performance fenestration solutions, the integration of steel reinforcement within PVC profiles delivers exceptional structural integrity and thermal efficiency. Our range of Steel Reinforced PVC Composite Windows is engineered to meet rigorous modern building standards, providing a slim sightline aesthetic without compromising on strength. For projects requiring adaptable ventilation and easy maintenance, the Tilt and Turn PVC-steel Composite Windows mechanism offers dual functionality, allowing secure night-ventilation or full inward opening. Homeowners looking to upgrade their living spaces will appreciate the tailored performance of Residential PVC-steel Composite Windows, which combine classic curb appeal with energy-saving glazing. For large-scale developments and office blocks, our Commercial PVC-steel Composite Windows deliver robust durability, acoustic insulation, and low lifecycle costs essential for demanding commercial environments.
Steel Lined PVC Composite Windows represent the pinnacle of hybrid window engineering, where a fully concealed galvanized steel core is bonded inside premium uPVC extrusions. This construction method prevents warping, increases multi-point locking security, and enables expansive glass areas with improved U-values down to 0.8 W/m²K. The fusion-welded corners and EPDM gaskets create an impermeable barrier against driving rain and noise intrusion. Below is a detailed breakdown of the key specifications and material data.
- Profiles: Class A (DIN EN 12608), multi-chamber with 1.5–2.0 mm steel lining thickness
- Glazing: Double or triple pane, argon-filled, low-E coating, warm edge spacer
- Weather performance: Air permeability Class 4, watertightness 600 Pa, wind load resistance Class C5
- Sound reduction: Up to Rw 48 dB (depending on glass configuration)
- Security: PAS 24 certified, multi-point shootbolt locks, internal beading
- Finish: Acrylic colour coating (RAL palette) or woodgrain foil lamination, UV-stable
| Parameter | Standard | Value |
|---|---|---|
| Overall Uw value | EN 10077-1 | 0.80 – 1.20 W/m²K |
| Glass Ug value | EN 673 | 0.5 – 1.0 W/m²K |
| Solar heat gain (g-value) | EN 410 | 0.45 – 0.63 |
| Visible light transmittance | EN 410 | 69 % – 82 % |
| Steel lining thickness | EN 12608 | 1.5 mm / 2.0 mm |
| Acoustic rating (Rw) | ISO 10140-2 | 35 – 48 dB |
| Opening type | – | Tilt & turn, casement, fixed, tilt-slide |
| Maximum sash weight | – | 140 kg |
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As a professional manufacturer and supplier, Duoping specializes in energy-saving windows, integrating advanced Low-E insulated glass and multi-layer thermal insulation sealing technology. With excellent thermal insulation performance and low energy consumption, these windows are widely used in residential, office and hotel projects. We offer customized services for glass, frames and opening methods, accept wholesale orders, and deliver high-quality, energy-efficient window solutions for various construction needs.
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Duoping is a professional supplier and manufacturer of Chinese style pavilions, relying on traditional mortise and tenon craftsmanship and advanced anti-corrosion technology to ensure high quality. Its Chinese style pavilions feature stability, durability and classic aesthetics, widely used in various Chinese-style scenarios. The company provides customized solutions, wholesale services and strict quality control, with nationwide delivery and professional after-sales support for all landscape projects.
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Duoping stands as a reliable manufacturer and supplier of high-quality clear glass with advanced processing technologies. This product features uniform light transmittance and reliable strength, suitable for architectural and home decoration scenarios. We provide customized sizes and processes, with strict quality control to ensure stable performance. Wholesale orders are welcome, delivering cost-effective solutions for global project procurement.
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Duoping excels in manufacturing high-end revolving doors with advanced technology and strict quality control. As a professional supplier, it offers customized solutions widely used in commercial spaces, with energy-saving, wind-resistant and safe features. The products support wholesale orders and come with reliable after-sales service for long-term durability.
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Duoping is a leader in the research, development, and supply of high-performance energy-efficient windows. With years of experience in the window and building materials industry, we specialize in providing products that combine advanced insulated glass and thermal sealing technologies to ensure excellent insulation, low energy consumption, and durability. Our energy-efficient windows are designed for various applications, including residential homes, office buildings, hotels, and more. We have successfully established a market presence both domestically and internationally and look forward to becoming your trusted partner for high-quality energy-efficient windows in China.
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Duoping excels in manufacturing wooden sunrooms with advanced wood processing and anti-corrosion technologies. As a professional supplier, it provides customized solutions featuring natural aesthetics, eco-friendliness and durability, suitable for villas and high-end residences. Wholesale orders are supported, with reliable after-sales service and a service life of 12–15 years for outdoor use.
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