Rongdu 50 Series Standard Engineering Doors and Windows (Curtain Wall Auxiliary Windows/General Exterior Window System)

Outer frame width: 50mm, standard wall thickness 1.4mm, optional 1.8mm reinforced profiles. Material: high-strength 6063-T5 aluminum alloy with excellent stability and deformation resistance.

Surface finishing options include powder coating, fluorocarbon coating, and electrophoretic oxidation. Dual-color customization is supported for interior and exterior architectural matching.

45° corner assembly technology with reinforced corner brackets ensures tight structure and high load stability. Compatible with European standard grooves for universal hardware systems and easy maintenance.

Double-layer EPDM sealing strips + equal-pressure drainage system ensure stable performance under all weather conditions.

Performance grade: Air Tightness Class 7, Water Tightness Class 5, Wind Resistance Class 7–8.

Compatible glass: 5+6A / 9A+5 insulated tempered glass. Optional frosted, coated or decorative mullion designs.

Sound insulation: 30–35dB, suitable for residential and general commercial buildings.

Opening types: casement, inward opening, top-hung, outward top-hung.

Mass production system ensures cost efficiency and stable quality, suitable for large-scale engineering procurement.

Strong compatibility with curtain walls, concrete structures, and steel frame systems for easy installation and fast construction.

Aluminum alloy surface treatment provides strong corrosion resistance and long-term color stability.

Service life exceeds 15 years with low maintenance cost and high engineering reliability.

Suitable for curtain wall auxiliary windows, residential buildings, resettlement housing, commercial podiums, industrial plants, schools, hospitals, and public infrastructure projects.

Designed for cost-sensitive engineering projects requiring stable quality, durability, and high adaptability.