
Core Design: Functions as a narrow casement window with a sleek profile.
Opening Mechanism: Operates as an inward casement window for easy cleaning and access.
Dual Action: Functions as aluminum tilt and turn windows, allowing secure ventilation.
Frame Style: Uses narrow frame casement windows design to maximize glass area.
Energy Efficiency: Includes thermal break technology and meets Energy Star standards.
Material: Constructed from durable aluminum profiles.
Customization: Offers custom sizing for commercial and residential projects.
Glazing: Supports multiple glass options for insulation needs.
Compliance: Certified by NFRC, CE, AS2047, CSA, and ISO9001.
Warranty: Includes a 10-year warranty coverage.
Manufacturer Support: DERCHI acts as a full-service narrow casement window manufacturer, providing 3D modeling and installation support.
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WY-104 Series Thermal Break Aluminum Casement Window
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DERCHI window and door

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Explore our portfolio of 200,000+ successful cases. See how our aluminum tilt and turn windows enhance buildings in over 100 countries.
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Browse our full range of architectural designs. We manufacture high-performance Casement Windows, Picture Windows, and Sliding Windows for diverse needs.

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