



Brief introduction:The new aluminum fully concealed high and low rail lift sliding window 2.0. This cutting-edge design combines aesthetics and practicality perfectly, with hidden guardrails for a clean visual effect. The lifting sliding mechanism ensures smooth operation, and the upgraded version 2.0 guarantees improved performance and durability.
1. Our aluminum windows are both beautiful and durable. They use Kaisenbei die-cast handles with fine grain, which have been tested 25,000 times. The stylish narrow frame design, upgraded fluorocarbon black hollow strips, and good powder electrostatic spraying provide a variety of colors.
2. Our screens enhance security and are equipped with metal corner guardrails and openable guardrails for additional protection.
3. Perfect sealing: The tee design of Jiangyin Haida EPDM rubber strip has sound insulation, corrosion resistance, anti-aging performance, and enhances the overall waterproof performance.
4. Our vertical isothermal design allows you to immerse yourself in thermal comfort, minimizing heat conduction and creating an effective barrier.
5. Our window glue injection process places safety first, enhancing the strength and waterproof seal of the entire unit.
6. The concealed drainage structure ensures the best drainage effect, ensuring smooth water flow and elegant lines.
7. Customize your experience with optional square/beveled pressure lines to provide customization to your needs.

Multi-cavity structure, better thermal insulation performance, high visibility, strong deformation and impact resistance, noise reduction and shock absorption, multi-channel sealing.
The handrail has stable structure, excellent waterproof performance, durability and resistance to deformation.


The frame is made of high-quality aluminum, with accurate dimensions to meet your usage habits and needs.
product attributes | |
Cross-sectional wall thickness | 2.0 mm |
Wall thickness of outer frame | 120 mm |
Frame thickness | 23 mm |
sector thickness | 57Mm |
glass pressing line | Square crimping/hypotenuse crimping |
material | Aluminum/glass |
color | Black. Grey. White. Coffee |
Glass processing | 5G + 19A + 5G standard black fluorocarbon integrated curved hollow aluminum strip |
sealing device | EPDM composite foam rubber strip |
Heat insulation strip | PA66GF25 14.8mm glass fiber reinforced nylon composite |
Hardware accessories | Osom Hardware |
Reasonable size | Maximum width 800 x height 2500 |
Other properties | |
Apply to | Living room, balcony, study, bedroom, office and other indoor partitions |
Payment terms | 30% -50% deposit |
lead time | 15-20 days |

Packaging and distribution
In order to protect the goods, we must pack at least three layers. The first layer is film, the second layer is carton or woven bag, and the third layer is carton or plywood box.
玻璃:胶合板箱,其他部件:用气泡袋覆盖,包装在纸箱中。
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1 What is a fully concealed 120 series lift sliding window with high and low rails? This is a heavy-duty lift sliding window with a frame width of 120mm, featuring a high and low rail drainage design and a fully concealed hardware structure, with good sealing, wide open field of view, and smooth operation.
2 What does "120 completely hidden" mean? The frame width is 120mm, and all hardware (hinges, locks, gearboxes) is hidden in the file, with a clean appearance and no exposed parts.
Building grade 6063-T5 high strength thickened aluminum alloy, stable structure, strong wind resistance.
4 What is the high and low rail design? The outdoor railing is lower and the indoor railing is higher, forming a natural slope, promoting rapid drainage of rainwater, effectively preventing water backflow and improving water resistance.
5 What is the opening of the lifting sliding sleeve? The push-pull frame can be slightly lifted and then pushed and pulled to reduce the push-pull, reduce the friction between the push-pull and the guide rail, make the operation lighter and avoid track wear.
6 What is the standard frame size? The frame width is 120mm, suitable for large exterior windows.
7 What is the maximum size of each waistline? A single window frame can be 900-1200 mm wide and 1800-2400 mm high.
8 opening style? Single sliding sleeve, double sliding sleeve, three tracks, with fixed push-pull, fully open on one or both sides.
9 Standard glass? Double tempered insulating glass 5 + 18A + 5/6 + 18A + 6, optional triple glass.
10 optional glass types? Low-E, laminated, frosted, stained, argon-filled soundproof glass.
11 Is glass safe? All glass is fully tempered safety glass, meeting international building safety standards.
12 How about the waterproof performance? High and low rails + concealed drainage chamber + multi-layer sealing, excellent waterproof and backflow resistance.
13 Sound insulation and thermal insulation? Using insulating glass and thermal break structure, the sound insulation effect can reach 30-40dB, and the energy saving effect is significant.
14 Wind pressure resistance? Excellent, suitable for high-rise buildings, coastal areas, and strong wind areas.
15 is anti-theft? Fully hidden multi-point lock system, strong security and anti-theft performance.
Is the 16 hardware really completely hidden? Yes, all gearboxes, locks, and hinges are built-in contours, with no exposed parts, looking nice and not easily damaged.
17 How to operate? Handle control: Turn the handle to raise the window frame, and then push and pull to slide.
18 Sliding Smooth? The lift structure reduces friction, and the sliding is light, smooth and quiet.
19 Surface treatment? Standard powder coating, optional fluorocarbon coating, wood grain transfer.
20 Is there any color to choose from? Any < unk > color, common: white, gray, black, coffee, champagne, wood grain.
21 Where is it mainly used? Villas, high-rise residences, balconies, bedrooms, living rooms, study rooms, hotels, office windows.
Can 22 sizes be customized? Fully customized: width, height, glass, color, opening direction, grille pattern.
23 installation difficulty? factory preload, with detailed installation drawings, professional installation stable and fast.
24 Outdoor service life? 20 to 30 years of normal use, hardware is durable, and it is not prone to rust or damage.
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