70SD–25 Series
Refined Strength, Elevated Design
The 70SD-25 offers fire-insulated and thermally broken energy-saving solutions across narrow-frame doors, large and narrow-frame windows, hopper windows, and fire windows. Sleek lines, secure construction, and excellent water-tightness come together to offer safety, efficiency, and style in one refined system.
Strong, Insulated, Multifunctional Steel Frames
Sleek 70 mm cold-rolled steel frames for a clean, modern look without sacrificing strength
High-strength steel construction delivers long-term durability and peace of mind
Glass-fiber polyurethane insulation helps keep indoor temperatures comfortable while improving energy efficiency
Three-cavity design reduces heat transfer, supporting better insulation and year-round comfort
70SD–25 Series
25 mm cavity width for improved insulation and structural performance
Fire- and water-resistant design for added safety and protection
Thermally broken, energy-saving profiles that help maintain comfortable indoor temperatures
Ideal for slim-frame doors, large windows, hopper windows, and sliding door applications
Explore the Collection
Inward-Opening Window
Outward-Opening Window
Top-Hinged Window
Manual Lift and Slide Door
Electric Lift and Slide Door
Panoramic Sliding Door
Magnetic Levitation
Sliding Door
Multi-Track Sliding Door
Inward/Outward Opening Door
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Galvanized Cold-Formed Steel
Fiberglass-Reinforced Polyurethane Insulation
Fluorocarbon Coating
Stainless Steel
Copper Plating Wire Drawing
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Inward Window – Inward-Opening Fire-Rated Window
Max W 750 × H 1600 mm (29 × 62 in)
Min: W 500 × H 500 mm (19 × 19 in)
Outward Window – Outward-Opening Fire-Rated Window
Max: W 750 × H 1600 mm (29 × 62 in)
Min: W 500 × H 500 mm (19 × 19 in)
Top-Hinged Fire-Rated Window
Max: W 1500 × H 1200 mm (59 × 47 in) (or within 1.8 m²)
Min: W 500 × H 500 mm (19 × 19 in)
Manual Lift-and-Slide Door
Max: W 1500 × H 3500 mm (59 × 137 in) (single-panel max weight ≤350 kg)
Min: W 500 × H 1800 mm (19 × 70 in)
Electric Lift-and-Slide Door
Max: W 2000 × H 3500 mm (78 × 137 in) (single-panel max weight ≤400 kg)
Min: W 500 × H 1800 mm (19 × 70 in)
Panoramic Sliding Door
Max: W 2500 × H 4000 mm (98 × 157 in) (single-panel max weight ≤500 kg)
Min: W 500 × H 1800 mm (19 × 70 in)
Magnetic Levitation Sliding Door
Max: W 2500 × H 4000 mm (98 × 157 in) (single-panel max weight ≤500 kg)
Min: W 500 × H 1800 mm (19 × 70 in)
Multi-Track Sliding Door
Max: W 2500 × H 4000 mm (98 × 157 in) (combined max weight ≤500 kg)
Min: W 500 × H 1800 mm (19 × 70 in)
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A variety of windows, doors, and partitions can be seamlessly combined to achieve your desired layout. Get in touch for more information.
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Steel hinges for welding or concealed hinge
Steel glazing beads(indoor)
Multipoint locks (motorized also available)
Emergency locks and panic push-bars
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The three-cavity structure design can achieve a better heat insulation effect
It can be matched with various types of standard hardware.
Steel hinges for welding or concealed hinge
Connection to a solid wall or lightweight partition wall.
Enhanced water tightness through advanced injection-sealing technology.
Lightweight engineering, reducing profile weight by 20% compared to similar products.