LG37S Hot-rolled steel series

Produced with hot-rolling technology, the 37 Series delivers a bold and solid profile with exceptional structural stability. Its clean, powerful lines make it ideal for expansive floor-to-ceiling windows, public architecture, and industrial-style projects, creating a strong visual presence and architectural impact.

LG50S Cold-bent steel series

Formed through advanced cold-bending techniques, the 50 Series is distinguished by its slim and refined profile, combining strength with lightness. It is best suited for interior partitions, fine window divisions, and minimalist modern spaces, offering both stability and a sense of elegance.

LG65S Thermal-break steel series

With integrated thermal-break technology, the 65 Series combines the inherent strength of steel with superior insulation and soundproofing performance. It is particularly suited for villas, luxury residences, and high-performance commercial spaces, ensuring both comfort and long-term durability.

steel-look thermal-break aluminum alloy

Built on lightweight aluminum alloy with thermal-break design, the 65 Steel-look Series replicates the authentic appearance of steel while offering aluminum’s advantages of corrosion resistance, insulation, and reduced weight. Perfect for modern homes, apartments, and design-focused spaces, it balances performance with distinctive aesthetics.

Shanghai

Shanghai

Beijing

Shanghai

Shanghai

Shanghai

London

London

Australia

Qingdao

London

America

Energy Efficient Steel Windows merge industrial-grade resilience with cutting-edge thermal science, engineered to slash energy consumption in both residential and commercial settings. Unlike traditional aluminum or vinyl frames, these steel systems utilize structural thermal breaks—polyamide or glass-reinforced composite barriers—that decouple interior and exterior frame sections. This technology reduces heat transfer by 40–60%, achieving whole-window U-values as low as 0.30 W/m²K (certified per EN 673/ISO 10292). In Brooklyn’s Tobacco Warehouse retrofit, this resulted in R-6 insulation performance and 40% lower heating costs

Core innovations include:

• Multi-Seal Design: Silicone-free EPDM gaskets with magnetic compression create hermetic seals at meeting rails, limiting air infiltration to <0.8 m³/m·h (EN 12207 Class 4). This eliminates drafts and reduces noise infiltration by up to 54dB STC, validated in Heathrow Airport hotel installations

• Climate-Tailored Glazing: Triple-pane IGUs with suspended krypton gas (90% purity) and Low-E coatings adapt to regional needs:

• Cold climates: U-value ≤0.30 with solar heat gain coefficient (SHGC) >0.50 to maximize passive heating

• Hot climates: SHGC ≤0.40 with spectrally selective coatings to reflect infrared radiation

• Slim Sightline Engineering: Cold-rolled A1008 steel frames (185MPa yield strength) enable profiles as narrow as 28mm, supporting oversized glazing up to 3.5m² without mullions—ideal for modern aesthetics and panoramic views

Commercial applications like Paris’s "Le Bruit Silence" hotel documented 37% higher occupancy rates after installation, citing eliminated traffic noise and 20% annual energy savings

. The powder-coated or electrophoretic finishes resist salt spray corrosion for 1,500+ hours (ISO 9227 C5-M), requiring only biannual maintenance versus wood’s quarterly refinishing. For historical renovations, micro-sandblasted surfaces replicate period-accurate textures while accommodating ±4mm masonry shifts via slotted hinge plates

Sustainability advantages:

• Recycled Content: 74–89% recycled steel reduces embodied carbon by 42% versus virgin-material frames

• Lifecycle Efficiency: Thermal breaks and Low-E glazing cut building emissions by 1.2–3 tons CO₂/year per 1,000 ft²

• Fire Safety: Achieves 90-minute fire ratings (BS 476-22) without intumescent seals, critical for commercial compliance