CN216429408U - Energy-saving aluminum alloy outer window for ultra-low energy consumption building - Google Patents
Energy-saving aluminum alloy outer window for ultra-low energy consumption building Download PDFInfo
- Publication number
- CN216429408U CN216429408U CN202120624228.3U CN202120624228U CN216429408U CN 216429408 U CN216429408 U CN 216429408U CN 202120624228 U CN202120624228 U CN 202120624228U CN 216429408 U CN216429408 U CN 216429408U
- Authority
- CN
- China
- Prior art keywords
- window
- sash
- heat insulation
- window frame
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Securing Of Glass Panes Or The Like (AREA)
Abstract
The utility model relates to an energy-saving aluminum alloy external window for an ultra-low energy consumption building, belonging to the technical field of building energy conservation; the window comprises a window frame and a window sash, wherein the window frame comprises an outer window frame and an inner window frame, the outer window frame and the inner window frame are connected into a whole through frame heat insulation strips, and the outer window frame, the inner window frame and the frame heat insulation strips are enclosed to form a window frame heat insulation cavity; the window sash comprises an outer window sash and an inner window sash, the outer window sash and the inner window sash are connected into a whole through a sash heat insulation strip, the outer window sash, the inner window sash and the sash heat insulation strip are enclosed to form a window sash heat insulation cavity, and heat insulation materials are filled in the window frame heat insulation cavity and the window sash heat insulation cavity; the lower part of the window frame is provided with a heightening section which comprises an inner layer and an outer layer, and the inner layer and the outer layer are connected into a whole by double heat insulation strips; a window frame and a window sash fit clearance form an equal-pressure cavity through a sealing assembly, a hollow glass combination is installed in the window sash, and a glass sealing gasket is arranged at the joint clearance of the window sash and the hollow glass combination; has excellent heat insulation effect, and is green and energy-saving.
Description
Technical Field
The utility model relates to an energy-saving aluminum alloy external window for a building with ultralow energy consumption, belonging to the technical field of building energy conservation.
Background
Energy conservation and emission reduction are the necessary ways for economic development, and energy conservation of the building doors and windows is an important component for energy conservation and emission reduction, and the energy conservation work of the building doors and windows is actively promoted. The German existing door and window energy-saving standard is 1.0 w/square meter, k is not less than Uw is not more than 1.2 w/square meter, and all buildings are required to achieve zero energy consumption before 2020, namely the requirement of the building with ultralow energy consumption and ultralow energy consumption is met. According to the German weather conditions, the heat insulation performance of doors and windows must be not more than 0.8 w/square meter k, and certainly, the Uw value is simply reduced, other related product performance indexes are correspondingly matched with the Uw value, but the Uw value of the doors and windows is reduced more difficultly and is also a main index. The method is an effective method for realizing transformation and upgrading of the building industry by promoting the building with ultra-low energy consumption and changing the development of high energy consumption, high pollution and low quality of the traditional building in the building industry. The ultra-low energy consumption building becomes the energy-saving development trend of the building in China, and the design and manufacture of the outer window is one of the key contents. At present, the door and window matched with the ultra-low energy consumption building is also a weak link.
At present, various forms of ultra-low energy consumption building external windows need to be developed and developed as soon as possible so as to meet the urgent needs of ultra-low energy consumption buildings.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, the energy-saving aluminum alloy external window for the ultra-low energy consumption building is provided, the requirements of the ultra-low energy consumption building on the external window in severe cold areas are met, the excellent heat insulation effect is achieved, and the energy-saving aluminum alloy external window is green and energy-saving.
The energy-saving aluminum alloy outer window for the ultra-low energy consumption building comprises a window frame and window sashes, wherein the window frame comprises an outer window frame and an inner window frame, the outer window frame and the inner window frame are connected into a whole through frame heat insulation strips, and the outer window frame, the inner window frame and the frame heat insulation strips are enclosed to form a window frame heat insulation cavity; the window sash comprises an outer window sash and an inner window sash, the outer window sash and the inner window sash are connected into a whole through a sash heat insulation strip, the outer window sash, the inner window sash and the sash heat insulation strip are enclosed to form a window sash heat insulation cavity, and heat insulation materials are filled in the window frame heat insulation cavity and the window sash heat insulation cavity; the lower part of the window frame is provided with a heightening section which comprises an inner layer and an outer layer, and the inner layer and the outer layer are connected into a whole by double heat insulation strips; the window frame and the window sash form an equal-pressure cavity through a sealing component, a hollow glass combination is installed in the window sash, and a glass sealing gasket is arranged at the joint gap of the window sash and the hollow glass combination.
The sealing assembly is used for secondary heat insulation, and the glass sealing gasket is made of phenolic resin, so that the cost performance is excellent, and the heat resistance effect is good. To the optimal design of window frame and casement, form window frame heat-insulating chamber and casement heat-insulating chamber respectively, fill thermal insulation material in window frame heat-insulating chamber and the casement heat-insulating chamber in order to strengthen thermal-insulated effect, window frame and casement cooperation clearance form the isobaric chamber through seal assembly, effectively prevent heat transfer, simultaneously through the optimization to the cooperation structure, form reasonable isotherm, reach and reduce heat transfer coefficient mould, make whole structure succinct, light, reduced the use amount of material, practiced thrift a large amount of resources. Through the measures, the traditional coefficient can be effectively controlled below 1.0W/m2 k, and the expected effect is achieved.
Preferably, the sealing assembly comprises a fan multi-cavity heat insulation strip and a multi-cavity equal-pressure rubber strip, the fan multi-cavity heat insulation strip is arranged on the side of the window sash, and the multi-cavity equal-pressure rubber strip is arranged on the side of the window frame.
The fan multi-cavity heat insulation strip and the multi-cavity isobaric adhesive tape are formed by adopting multi-cavities and are used for forming an isobaric sealing cavity, so that an isobaric sealing effect is achieved, and heat transfer is effectively prevented. The whole structure is simple and portable, the material consumption is reduced, and a large amount of social resources are saved.
Preferably, fan multi-chamber heat insulating strip and the isobaric adhesive tape cooperation position of multi-chamber are protruding to become the pitch arc cooperation, and the closed contact site of window frame and casement is soft contact, and fan multi-chamber heat insulating strip and the isobaric adhesive tape of multi-chamber all adopt the EPT material.
And a soft and hard co-extrusion technology is adopted to increase the combination compactness. The soft and hard co-extrusion technology is used for realizing the compact sealing effect of the combined part, so that the frame fan is more compact when closed, the sealing effect is enhanced, the space distribution of the sealing cavity is reasonable, and the frame fan structure is more concise.
Preferably, the hollow glass combination comprises a first layer of glass, a second layer of glass and a third layer of glass, argon is filled between the two layers of glass, and an efficient warming edge strip is arranged between the marginal edges of the two layers of glass.
Further enhancing the heat insulation effect.
Preferably, the hollow glass combination further comprises a fourth layer of glass, glue is filled between the third layer of glass and the fourth layer of glass, and the second layer of glass is three-silver LOW-E coated glass.
Further enhancing the heat insulation effect.
Preferably, the double heat insulation strip is C-shaped and made of PA 66.
Further enhancing the heat insulation effect.
Preferably, the heat insulation material is made of polyurethane foam.
Further enhancing the heat insulation effect.
Preferably, a sash sealing strip is arranged between the window frame and the sash matching margin.
Further enhancing the heat insulation effect.
Preferably, a padding sealing strip is arranged between the window frame and the padding section bar, and the padding sealing strip is made of phenolic resin.
By adding the bottom frame heat insulation padding section bar, the failure of the whole heat insulation effect caused by installation factors is effectively prevented, and a last barrier is additionally arranged for heat transfer; the heightening section adopts phenolic resin, so that the cost performance is excellent, and the heat resistance effect is good.
Preferably, the inner window sash is provided with a movable pressing line, and the movable pressing line and the hollow glass combination and the outer window sash and the hollow glass combination are sealed through a sash glass sealing rubber strip.
The fixed part can be elastically changed along with the stress of the glass, and the firmness and the safety of the glass are ensured.
Compared with the prior art, the utility model has the following beneficial effects:
1. the energy-saving aluminum alloy outer window for the ultra-low energy consumption building, disclosed by the utility model, has the advantages that the window frame and the window sash are optimally designed, the heat transfer is effectively prevented, a reasonable isothermal line is formed, the heat transfer coefficient is reduced, the whole structure is simple and portable, the material consumption is reduced, and a large amount of resources are saved.
2. The adoption of metal materials reaches and is superior to the standard of an ultra-low energy consumption building on an external window, the weight is reduced, the bearing capacity of the whole external wall is reduced while the window body material is saved, the quantity of the wall body bearing material can be reduced in design, and more resources are saved.
3. The movable pressing line is installed on the inner sash, the fixed position is elastically changeable along with the stress of the glass, and the firmness and the safety of the glass are guaranteed.
4. The soft and hard co-extrusion technology is used for realizing the compact sealing effect of the combined part, so that the frame fan is more compact when closed, the sealing effect is enhanced, the space distribution of the sealing cavity is reasonable, and the frame fan structure is more concise.
5. By adding the bottom frame heat insulation padding section bar, the failure of the whole heat insulation effect caused by installation factors is effectively prevented, and a last barrier is additionally arranged for heat transfer; the heightening section adopts phenolic resin, so that the cost performance is excellent, and the heat resistance effect is good.
Drawings
FIG. 1 is a schematic structural view of an energy-saving aluminum alloy external window for an ultra-low energy consumption building according to the present invention;
3 FIG. 3 2 3 is 3 a 3 schematic 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3. 3
Wherein: 1. a window frame; 101. an outer window frame; 102. an inner window frame; 2. a window sash; 201. an outer sash; 202. an inner sash; 3. combining hollow glass; 301. a first layer of glass; 302. a second layer of glass; 303. a third layer of glass; 401. frame heat insulating strips; 402. Fan heat insulation strips; 5. fan-shaped multi-cavity heat insulation strips; 6. frame sash sealing strips; 7. a multi-cavity isobaric glue strip; 8. a glass sealing gasket; 9. sealing rubber strips for fan glass; 10. a window frame heat insulation cavity; 11. a bedding-up section bar; 12. double heat insulation strips; 13. heightening the sealing strip; 14. a sash heat insulation cavity; 15. efficiently warming the edge strips; 16. and (6) movably pressing the line.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
example 1
As shown in fig. 1-2, the energy-saving aluminum alloy external window for ultra-low energy consumption building of the present invention includes a window frame 1 and a window sash 2, wherein the window frame 1 includes an outer window frame 101 and an inner window frame 102, the outer window frame 101 and the inner window frame 102 are connected into a whole by a frame heat-insulating strip 401, and the outer window frame 101, the inner window frame 102 and the frame heat-insulating strip 401 enclose to form a window frame heat-insulating cavity 10; the window sash 2 comprises an outer window sash 201 and an inner window sash 202, the outer window sash 201 and the inner window sash 202 are connected into a whole through a sash heat insulation strip 402, the outer window sash 201, the inner window sash 202 and the sash heat insulation strip 402 are enclosed to form a window sash heat insulation cavity 14, and heat insulation materials are filled in both the window frame heat insulation cavity 10 and the window sash heat insulation cavity 14; the lower part of the window frame 1 is provided with a heightening section bar 11, the heightening section bar 11 comprises an inner layer and an outer layer, and the inner layer and the outer layer are connected into a whole by a double heat insulation strip 12; the window frame 1 and the window sash 2 form an equal-pressure cavity through a sealing component in a matching gap, a hollow glass combination 3 is installed in the window sash 2, and a glass sealing gasket 8 is arranged at the connecting gap between the window sash 2 and the hollow glass combination 3.
The sealing assembly is used for secondary heat insulation, and the glass sealing gasket 8 is made of phenolic resin, so that the cost performance is excellent, and the heat resistance effect is good. To the optimal design of window frame 1 and casement 2, form window frame thermal-insulated chamber 10 and casement thermal-insulated chamber 14 respectively, fill thermal insulation material in window frame thermal-insulated chamber 10 and casement thermal-insulated chamber 14 with reinforcing thermal-insulated effect, window frame 1 and casement 2 cooperation clearance form the isobaric chamber through seal assembly, effectively prevent heat transfer, through the optimization to the cooperation structure, form reasonable isotherm simultaneously, reach and reduce the coefficient of heat transfer mould, make the overall structure succinct, light, the use amount of material has been reduced, a large amount of resources have been practiced thrift. Through the measures, the traditional coefficient can be effectively controlled below 1.0W/m2 k, and the expected effect is achieved.
Specifically, the frame insulating strips 401 and the fan insulating strips 402 are widened to 64mm, and the phenolic resin filler is used for effectively isolating metal and non-metal gaps.
Wherein, sealing assembly includes fan multi-chamber thermal-insulated strip 5 and the isobaric adhesive tape 7 of multi-chamber, and fan multi-chamber thermal-insulated strip 5 sets up in 2 sides of casement, and the isobaric adhesive tape 7 of multi-chamber sets up in 1 side of window frame.
The fan multi-cavity heat insulation strip 5 and the multi-cavity isobaric rubber strip 7 are formed by multiple cavities and used for forming an isobaric sealing cavity, so that an isobaric sealing effect is achieved, and heat transfer is effectively prevented. The whole structure is simple and portable, the material consumption is reduced, and a large amount of social resources are saved.
Wherein, fan 5 and the isobaric adhesive tape 7 cooperation positions of multi-chamber heat insulating strip arch one-tenth pitch arc cooperation, and window frame 1 and 2 closed contact positions of casement are soft contact, and fan 5 and the isobaric adhesive tape 7 of multi-chamber all adopt the EPT material.
And a soft and hard co-extrusion technology is adopted to increase the combination compactness. The soft and hard co-extrusion technology is used for realizing the compact sealing effect of the combined part, so that the frame fan is more compact when closed, the sealing effect is enhanced, the space distribution of the sealing cavity is reasonable, and the frame fan structure is more concise.
The hollow glass assembly 3 comprises a first layer of glass 301, a second layer of glass 302 and a third layer of glass 303, argon is filled between the two layers of glass, and a high-efficiency warm edge strip 15 is arranged between the marginal edges of the two layers of glass.
The composite glass is specifically configured into 5-ultrawhite + FHDT-80+16A poly +5 ultrawhite FHDT-80 toughened hollow glass, the single layer is 5mm ultrawhite toughened glass, argon is filled between the glass, an efficient warm edge strip 15 is increased, polysulfide glue is sealed, and the heat insulation effect is further enhanced.
The hollow glass assembly 3 further comprises a fourth layer of glass, glue is filled between the third layer of glass 303 and the fourth layer of glass, and the second layer of glass 302 is three-silver LOW-E coated glass.
Further enhancing the heat insulation effect.
The double heat insulation strips 12 are C-shaped and made of PA 66.
Further enhancing the heat insulation effect.
Wherein the heat insulation material is made of polyurethane foam.
Further enhancing the heat insulation effect.
And a sash sealing strip 6 is arranged between the matching margins of the window frame 1 and the sash 2.
Further enhancing the heat insulation effect.
And a padding sealing strip 13 is arranged between the window frame 1 and the padding section bar 11, and the padding sealing strip 13 is made of phenolic resin.
Specifically, the window frame 1 is an aluminum alloy sunshade frame body, the aluminum alloy sunshade frame body has 45-degree group angles, the window sash 2 is an aluminum alloy sunshade frame body, the aluminum alloy sunshade frame body has 45-degree group angles, the window frame 1 of the fixed part and the window frame 1 of the opening part have 90-degree group angles, and the rest parts have 45-degree group angles. Normally, the window frame 1 and the window sash 2 are processed in a factory, and the window frame 1 and the window sash 2 are connected by hardware in the factory; the heightening profile 11 is installed on site, and the heightening profile 11 is connected with the window frame 1 on site.
By adding the bottom frame heat insulation heightening section bar 11, the failure of the whole heat insulation effect caused by installation factors is effectively prevented, and a last barrier is additionally arranged for heat transfer; the heightening section bar 11 is made of phenolic resin, so that the cost performance is excellent, and the heat resistance effect is good.
The inner window sash 202 is provided with a movable pressing line 16, and the movable pressing line 16 and the hollow glass combination 3, and the outer window sash 201 and the hollow glass combination 3 are sealed by a glass sealing rubber strip 9.
Specifically, the window sash 2 is arranged around the periphery of the hollow glass assembly 3, the window sash 2 is flush with the inside and the outside of the opaque part of the hollow glass around, the inner window sash 202 of the opening part is provided with a movable pressing line 16, the movable pressing line 16 is provided with a circular rubber bar, the movable pressing line 16 and the hollow glass assembly 3 are sealed through a window sash glass sealing rubber strip 9, and the outer window sash 201 of the opening part and the hollow glass assembly 3 are sealed through a sealing rubber strip; the window frame 1 of the fixed part is provided with a movable pressing line 16, the movable pressing line 16 is provided with a round glue stick, and the movable pressing line 16 is sealed with the hollow glass assembly 3 through a glass sealing rubber strip 9. The sealing rubber strip 9 of the fan glass is made of ethylene propylene diene monomer.
The fixed part can be elastically changed along with the stress of the glass, and the firmness and the safety of the glass are ensured.
In conclusion, the energy-saving aluminum alloy external window for the ultra-low energy consumption building has an excellent heat insulation effect, and is green and energy-saving.
Claims (10)
1. The energy-saving aluminum alloy outer window for the ultra-low energy consumption building is characterized by comprising a window frame (1) and a window sash (2), wherein the window frame (1) comprises an outer window frame (101) and an inner window frame (102), the outer window frame (101) and the inner window frame (102) are connected into a whole through a frame heat insulation strip (401), and the outer window frame (101), the inner window frame (102) and the frame heat insulation strip (401) are enclosed to form a window frame heat insulation cavity (10); the window sash (2) comprises an outer window sash (201) and an inner window sash (202), the outer window sash (201) and the inner window sash (202) are connected into a whole through a sash heat insulation strip (402), the outer window sash (201), the inner window sash (202) and the sash heat insulation strip (402) are enclosed to form a window sash heat insulation cavity (14), and heat insulation materials are filled in the window frame heat insulation cavity (10) and the window sash heat insulation cavity (14); the lower part of the window frame (1) is provided with a heightening section bar (11), the heightening section bar (11) comprises an inner layer and an outer layer, and the inner layer and the outer layer are connected into a whole by a double heat insulation strip (12); the window frame (1) and the window sash (2) are matched with each other to form an equal-pressure cavity through a sealing assembly, a hollow glass combination (3) is installed in the window sash (2), and a glass sealing gasket (8) is arranged at the joint gap between the window sash (2) and the hollow glass combination (3).
2. The energy-saving aluminum alloy exterior window for ultra-low energy consumption building of claim 1, wherein the sealing assembly comprises a sash multi-cavity heat insulation strip (5) and a multi-cavity isobaric adhesive tape (7), the sash multi-cavity heat insulation strip (5) is arranged on the sash (2) side, and the multi-cavity isobaric adhesive tape (7) is arranged on the window frame (1) side.
3. The energy-saving aluminum alloy exterior window for the ultra-low energy consumption building of claim 2, wherein the matching parts of the fan multi-cavity heat-insulating strips (5) and the multi-cavity equal-pressure rubber strips (7) are protruded to form arc line matching, the closed contact parts of the window frame (1) and the window sash (2) are in soft contact, and the fan multi-cavity heat-insulating strips (5) and the multi-cavity equal-pressure rubber strips (7) are made of ethylene propylene diene monomer.
4. The energy-saving aluminum alloy external window for the ultra-low energy consumption building as claimed in any one of claims 1-3, wherein the hollow glass combination (3) comprises a first layer of glass (301), a second layer of glass (302) and a third layer of glass (303), argon is filled between the two layers of glass, and a high-efficiency warming edge strip (15) is arranged between the marginal edges of the two layers of glass.
5. The energy-saving aluminum alloy external window for the ultra-LOW energy consumption building as claimed in claim 4, wherein the hollow glass assembly (3) further comprises a fourth layer of glass, glue is filled between the third layer of glass (303) and the fourth layer of glass, and the second layer of glass (302) is three-silver LOW-E coated glass.
6. The energy-saving aluminum alloy external window for the ultra-low energy consumption building of claim 4, wherein the double heat insulation strips (12) are C-shaped and made of PA 66.
7. The energy-saving aluminum alloy external window for ultralow energy consumption building of claim 4, wherein the heat insulating material is made of polyurethane foam.
8. The energy-saving aluminum alloy external window for the ultra-low energy consumption building as claimed in claim 4, wherein a sash sealing strip (6) is arranged between the matching margins of the window frame (1) and the window sash (2).
9. The energy-saving aluminum alloy external window for the ultra-low energy consumption building of claim 4, characterized in that a padding sealing strip (13) is arranged between the window frame (1) and the padding profile (11), and the padding sealing strip (13) is made of phenolic resin.
10. The energy-saving aluminum alloy external window for the ultra-low energy consumption building as claimed in claim 4, wherein the movable pressing line (16) is installed on the inner sash (202), and the movable pressing line (16) and the hollow glass combination (3) and the outer sash (201) and the hollow glass combination (3) are sealed through a sash glass sealing rubber strip (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120624228.3U CN216429408U (en) | 2021-03-27 | 2021-03-27 | Energy-saving aluminum alloy outer window for ultra-low energy consumption building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120624228.3U CN216429408U (en) | 2021-03-27 | 2021-03-27 | Energy-saving aluminum alloy outer window for ultra-low energy consumption building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216429408U true CN216429408U (en) | 2022-05-03 |
Family
ID=81315459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120624228.3U Active CN216429408U (en) | 2021-03-27 | 2021-03-27 | Energy-saving aluminum alloy outer window for ultra-low energy consumption building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216429408U (en) |
-
2021
- 2021-03-27 CN CN202120624228.3U patent/CN216429408U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113374383A (en) | Energy-saving aluminum alloy outer window for ultra-low energy consumption building | |
| CN109209146B (en) | Four-seal multi-break bridge heat insulation aluminum-plastic co-extrusion profile for passive house | |
| CN201437680U (en) | Warm-edge hollow glass | |
| CN203835159U (en) | Heat-isolation aluminum alloy door and window | |
| CN202249578U (en) | Novel aluminum alloy heat-insulation window | |
| CN206110986U (en) | Club's section bar in passive form | |
| CN216429408U (en) | Energy-saving aluminum alloy outer window for ultra-low energy consumption building | |
| CN212154561U (en) | Heat-insulating aluminum alloy door and window | |
| CN109209144B (en) | Ultra-low energy consumption multi-break bridge heat insulation aluminum plastic co-extrusion filling composite section bar | |
| CN209761177U (en) | Internal-opening and external-opening bridge-cut-off heat insulation aluminum-plastic co-extrusion section | |
| CN213297733U (en) | Noise-reduction heat-insulation building door and window structure | |
| CN206299312U (en) | One kind flushes insulation inwardly opened window high | |
| CN205502874U (en) | Thermal -insulated sound insulation sunshade anti -theft system window that keeps warm of high performance | |
| CN204984171U (en) | Aluminum alloy door -window structure that insulates against heat | |
| CN213234744U (en) | Heat insulation type aluminum alloy window | |
| CN208122686U (en) | The passive window of novel energy-conserving | |
| CN201705117U (en) | Aluminum plastic composite energy-saving door and window | |
| CN207092850U (en) | Large span steel heat insulation sliding window | |
| CN215804063U (en) | Cushion frame section bar for high-performance aluminum alloy outer window | |
| CN217176315U (en) | Low energy consumption aluminium alloy window | |
| CN219197127U (en) | Energy-saving safety window | |
| CN219316764U (en) | Single-frame double-glass attached frame section bar, window and mounting structure | |
| CN219974265U (en) | Transformation structure of existing sliding window | |
| CN220395491U (en) | Window frame heat preservation filling structure | |
| CN214170348U (en) | Integrated bridge cut-off casement window |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |