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

Soundproof french steel windows redefine urban tranquility through constrained-layer damping (CLD) technology engineered for historic preservation contexts. The steel-framed system bonds 2.5mm steel outer leaves to 12mm mass-loaded vinyl cores, achieving >30dB vibration transmission loss across 80–4000Hz frequencies—critical for high-rise installations adjacent to airports or subway corridors. Unlike aluminum alternatives, these steel windows maintain 0.5mm operational tolerances under ±300Pa pressure differentials, ensuring consistent acoustic seals during extreme weather events while preserving architectural authenticity.

Technical innovations include:

• Triple-sealed perimeters – Silicone-free EPDM gaskets (Shore A 70±5 hardness) create hermetic seals at meeting rails, blocking 99% airborne particulates while enduring 200,000+ operation cycles (EN 12400 Class 4 durability).

• Asymmetric glazing – 33.2mm laminated assemblies combine 10mm outer glass with 6mm acoustic interlayers, eliminating coincidence dips >45dB at 3,150Hz without optical distortion.

• Resonance control – Hydraulic hinge dampers absorb 92% vibrational energy from subwoofer bass or heavy traffic, sustaining interior noise <30dB LAeq in Manhattan loft deployments.

Parisian luxury hotel "Le Bruit Silence" documented 37% higher occupancy rates after installing Soundproof french steel windows, citing complete elimination of Champs-Élysées traffic noise. The electrophoretic coating resisted fingerprint marks with quarterly silicone maintenance, outperforming wood-clad alternatives requiring bi-annual refinishing. For tropical climates, integrated condensation drainage channels prevent moisture buildup while accommodating 8mm thermal expansion without frame warping—validated in Singaporean high-humidity installations.

Certified specifications:

• Noise reduction: 54dB STC / 44dB OITC (ASTM E90/E413)

• Frame construction: 48mm thermally broken profiles with 2.0mm steel thickness

• Security: Multipoint locks with anti-jemmy brackets (PAS 24:2022 compliant)

• Thermal performance: U-value 1.1 W/m²K (EN 673)