CN109252681A - A kind of shockproof installation method of prefabricated roof - Google Patents
A kind of shockproof installation method of prefabricated roof Download PDFInfo
- Publication number
- CN109252681A CN109252681A CN201811174696.4A CN201811174696A CN109252681A CN 109252681 A CN109252681 A CN 109252681A CN 201811174696 A CN201811174696 A CN 201811174696A CN 109252681 A CN109252681 A CN 109252681A
- Authority
- CN
- China
- Prior art keywords
- roof boarding
- roof
- prefabricated
- shockproof
- fixing piece
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The present invention proposes a kind of shockproof installation method of prefabricated roof, includes the following steps: fixing piece, roof boarding, cleaning, lifting and fixation, pea gravel concreten perfusion, shockproof series connection, laying and bottom smoothes out and detection；Defense sector shock stability of the present invention is good, since all prefabricated roofs are connected into an entirety by metal strip, it will not pound down when an earthquake occurs, the life security of resident is kept, while house prefabricated component is washed one's face overlaying structure, is prefabricated structure, on wall top, multiple groups fixing piece and fixing bolt are set, multiple groups roof boarding is fixed in the mounting groove on the inside of symmetrical fixing piece, in this way together with series combination, anti seismic efficiency is more preferable.
Description
Technical field
The present invention relates to technical field of buildings more particularly to a kind of shockproof installation methods of prefabricated roof.
Technical background
It is also higher and higher to the safety requirements for building pre- now with the development of building, Building Construction work
Skill is complicated, and the duration is very long, the more waste of resource of building waste, and the gable roof for having modular unit to constitute a, component at least needs
One piece of cover board is wanted, arranges rafter wood along ridge direction in its lower section, the rafter of the component of two arrangements that face each other is at it
Ridge side end region connected each other with movable joint, the structure on housing top, but roofing can be collectively covered by thus generating
Directly on roof, the relevant requirement for preventing earthquake of country, building when how to be effectively prevented earthquake is not achieved in installation to the components such as plate
The safety of object, protection the people's lives and property just become more and more important.Therefore, the present invention proposes a kind of preventing for prefabricated roof
Shake installation method place so as to solve the deficiencies in the prior art.
Summary of the invention
In view of the above-mentioned problems, the present invention proposes the shockproof installation method of kind of prefabricated roof, defense sector shock stability of the present invention is good,
Since all prefabricated roofs are connected into an entirety by metal strip, it will not pound down when an earthquake occurs, keep resident's
Life security, while house prefabricated component is washed one's face overlaying structure, is prefabricated structure, the setting multiple groups fixing piece and solid on wall top
Determine bolt, multiple groups roof boarding is fixed on the inside of symmetrical fixing piece, in this way together with series combination, anti seismic efficiency
More preferably, and the earthquake-proof installation method construction efficiency is high, avoids wasting time, while in advance will be at ground installing roof boarding
Reason and wall unitary construction come out, and guarantee the smooth of roof installation, avoid the occurrence of fortuitous event, and prevented after installing
Water and shockproof detection, to ensure that the practicability of this method.
A kind of shockproof installation method of prefabricated roof, comprising the following steps:
Step 1: fixing piece
Ground first is accomplished fluently on ground, wall is piled up on the ground accomplished fluently, multiple groups fixing piece is then placed at the top of wall；
Step 2: roof boarding
By structural plan layout drawing in the top surface pop-up geometric center lines of winding up of roof truss, day is popped up respectively from span centre to both ends
Window-frame, roof boarding install directrix；
Step 3: it cleans
It should will be cleaned up at wall installation place and fixing piece before roof boarding is in place, according to 500 millimeters of absolute altitude ray examination marks
Height checks axis, wipes 1:2 cement mortar screeding layer；
Step 4: lifting and fixed
Roof boarding is lifted into the top surface of wall, alignment and fixation part (just permitted to break off relations after falling surely, be passed through by the mounting groove of inside
Instrument promotes fixing piece inwardly, and then tentatively roof boarding is fixed by installing multiple groups fixing bolt on fixing piece；
Step 5: pea gravel concreten perfusion
Roof boarding bottom installation hang mould, then between every group of roof boarding gap be perfused pea gravel concreten, insert it is closely knit,
On some strength to be achieved next step construction could be carried out in top surface；
Step 6: shockproof series connection
After roof boarding is laid on the gable of building, passed through from the lightening hole of roof boarding with metal strip, it will be adjacent
Roof boarding is together in series, and then the two ends of metal strip are fixed on wall, and original individually roof boarding is made to be linked to be entirety；
Step 7: it is laid with
Dope layer, waterproof roll, isolation screed and pea gravel concreten layer are laid on roof boarding as waterproof construction；
Step 8: bottom smoothes out and detection
Roof boarding bottom is smoothed out by cement mortar, waterproof experiment and shockproof experiment are then done on roof boarding.
Further improvement lies in that: in the step 1 with ground grading, dig pit, built-in connection, solidify in ground one
Kind or several method pre-process ground, are connected with screw connection, expansion bolt connection, mortise-tenon joint, angle bar connection, buckle
The combined stack for connecing, linking up with one or more of connection, adhesive connection, cement mortar connection method is built a wall body, then in wall
Multiple groups fixing piece is placed at the top of body.
Further improvement lies in that: geometry first is popped up in the top surface of winding up of roof truss by structural plan layout drawing in the step 2
Center line pops up skylight frame, roof boarding installation directrix respectively from span centre to both ends, then pops up installation center line in end, on
The installation site line of supporting jointing part is popped up in lower edge two sides, pops up vertical bar center line.
Further improvement lies in that: when roof boarding is tentatively fixed in the step 4, gap between compacted roof boarding is answered, when in place
Accurately, when still having the gap, using filled thermal insulation materials, while the degree of fastening should be grasped when being fastened and fixed bolt, it can not mistake
Degree, can excessively be such that seal washer turns over, or even press recessed and ponding by roof boarding, and fastening can not enough make to seal not in place and go out
Now leak.
Further improvement lies in that: it is answered in the step 4 when the width dimensions of the depth size in room and floor are adapted
Adjustment plate slit width degree, plate stitch width is not preferably less than 40 millimeters, when plate stitch is wider than 60 millimeters, prepares plate stitch reinforcing bar by design,
The length of plate people's support, long to should be greater than 70 millimeters to plate, short plate should be greater than 35 millimeters, plate must check the number by design requirement into
Seat, must not misplace plate number.
Further improvement lies in that: in roof boarding bottom, mould is hung in installation in the step 5, then between every group of roof boarding
Gap be perfused pea gravel concreten, insert it is closely knit, on some strength to be achieved could top surface carry out next step construction, finally in phase
Also the fastness that pea gravel concreten improves installation is perfused between adjacent fixing piece.
Further improvement lies in that: after hanging mould perfusion pea gravel concreten in the step 5, mouth will stay 25- under roofing plate stitch
35 mm wides.
Further improvement lies in that: the step 6 is pre- on roof when prefabricated roof is laid on the gable of building
The drilling of the gable overlapping of product and building, fixing lock is inserted into hole, is connected together by fixed pin and gable.
The invention has the benefit that defense sector shock stability of the present invention is good, since metal strip is by all prefabricated roof strings
It is unified into an entirety, will not be pounded down when an earthquake occurs, has kept the life security of resident, while house prefabricated component is washed one's face superposition
Structure is prefabricated structure, and multiple groups fixing piece and fixing bolt is arranged on wall top, multiple groups roof boarding is fixed on symmetrical solid
Determine in the mounting groove on the inside of part, in this way together with series combination, anti seismic efficiency is more preferable, and the earthquake-proof is installed
Method construction efficiency is high, avoids wasting time, while in advance coming out floor treatment and wall unitary construction in installation roof boarding,
Guarantee the smooth of roof installation, avoid the occurrence of fortuitous event, and carry out waterproof and shockproof detection after installing, to guarantee
The practicability of this method.
Detailed description of the invention
Fig. 1 is schematic diagram of the three-dimensional structure；
Fig. 2 is main view of the present invention；
Fig. 3 is fixing piece schematic perspective view of the present invention.
Specific embodiment
In order to realize invention technological means, reach purpose and effect is easy to understand, below with reference to specific implementation
Mode, the present invention is further explained.
Embodiment one
A kind of shockproof installation method of prefabricated roof
Step 1: fixing piece
With ground grading, dig pit, built-in connection, solidification one or more of ground method locate ground in advance
Reason is connected with screw connection, expansion bolt connection, mortise-tenon joint, angle bar, is snapped connection, linking up with connection, adhesive connection, water
The combined stack of one or more of cement mortar connection method is built a wall body, and multiple groups fixing piece 1 is then placed at the top of wall；
Step 2: roof boarding 2
First popped up respectively in the top surface pop-up geometric center lines of winding up of roof truss from span centre to both ends by structural plan layout drawing
Skylight frame, roof boarding 2 install directrix, then pop up installation center line, the peace of upper lower edge two sides pop-up supporting jointing part in end
Holding position line pops up vertical bar center line；
Step 3: it cleans
It should will be cleaned up at wall installation place and fixing piece 1 before roof boarding 2 is in place, according to 500 millimeters of absolute altitude ray examinations
Absolute altitude checks axis, wipes 1:2 cement mortar screeding layer；
Step 4: lifting and fixed
Adjustment plate slit width degree is answered when the width dimensions of the depth size in room and floor are adapted, plate stitch width is unsuitable small
In 40 millimeters, when plate stitch is wider than 60 millimeters, plate stitch reinforcing bar, the length of plate people's support are prepared by design, length should be greater than to plate
70 millimeters, short plate should be greater than 35 millimeters, and plate must sit in the right seat by design requirement, must not misplace plate number, and roof boarding 2 is lifted
To the top surface of wall, the mounting groove 3 of 1 inside of alignment and fixation part, fall it is steady after just permitted to break off relations, by instrument by fixing piece 1 inwardly
It promotes, then tentatively roof boarding 2 is fixed by installing multiple groups fixing bolt 4 on fixing piece 1, roof boarding 2 is tentatively fixed
When, 2 gaps of compacted roof boarding are answered, when in place accurate, when still having the gap, using filled thermal insulation materials, while being fastened and fixed
The degree that fastening should be grasped when bolt, can not be excessive, can excessively seal washer be made to turn over, in addition roof boarding 2 is pressed recessed and
Ponding, fastening can not enough make to seal not in place and leak；
Step 5: pea gravel concreten perfusion
In 2 bottom of roof boarding, mould 5 is hung in installation, and pea gravel concreten then is perfused to the gap between every group of roof boarding 2, inserts close
It is real, next step construction could be carried out in top surface on some strength to be achieved, after hanging mould perfusion pea gravel concreten, under roofing plate stitch
Mouth will stay 25-35 mm wide, and the fastness that pea gravel concreten improves installation is finally also perfused between adjacent fixing piece 1；
Step 6: shockproof series connection
After roof boarding 2 is laid on the gable of building, passed through from the lightening hole of roof boarding 2 with metal strip 6, it will be adjacent
Roof boarding 2 be together in series, then the two ends of metal strip 6 are fixed on wall, are linked to be original individually roof boarding 2 whole
Body drills when prefabricated roof is laid on the gable of building in the gable overlapping of prefabricated roof and building, from
It is inserted into fixing lock in hole, is connected together by fixed pin and gable；
Step 7: it is laid with
Dope layer, waterproof roll, isolation screed and pea gravel concreten layer are laid on roof boarding 2 as waterproof construction；
Step 8: bottom smoothes out and detection
2 bottom of roof boarding is smoothed out by cement mortar, waterproof experiment and shockproof experiment are then done on roof boarding 2.
Defense sector shock stability of the present invention is good, since all prefabricated roofs are connected into an entirety by metal strip 6, is occurring
It will not be pounded down when earthquake, keep the life security of resident, while house prefabricated component is washed one's face overlaying structure, is prefabricated structure,
Multiple groups fixing piece 1 and fixing bolt 4 are set on wall top, multiple groups roof boarding 2 is fixed on to the installation of symmetrical 1 inside of fixing piece
In slot 3, in this way together with series combination, anti seismic efficiency is more preferable, and the earthquake-proof installation method construction efficiency
Height avoids wasting time, while in advance coming out floor treatment and wall unitary construction in installation roof boarding 2, guarantees roof peace
What is filled is smooth, avoids the occurrence of fortuitous event, and waterproof and shockproof detection are carried out after installing, to ensure that this method
Practicability.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (8)
1. a kind of shockproof installation method of prefabricated roof, it is characterised in that: the following steps are included:
Step 1: fixing piece
Ground first is accomplished fluently on ground, wall is piled up on the ground accomplished fluently, then places multiple groups fixing piece (1) at the top of wall；
Step 2: roof boarding (2)
By structural plan layout drawing in the top surface pop-up geometric center lines of winding up of roof truss, skylight is popped up respectively from span centre to both ends
Frame, roof boarding (2) install directrix；
Step 3: it cleans
It should will be cleaned up at wall installation place and fixing piece (1) before roof boarding (2) is in place, according to 500 millimeters of absolute altitude ray examinations
Absolute altitude checks axis, wipes 1:2 cement mortar screeding layer；
Step 4: lifting and fixed
Roof boarding (2) is lifted into the top surface of wall, the mounting groove (3) on the inside of alignment and fixation part (1) is just permitted to break off relations after falling surely,
Fixing piece (1) is promoted inwardly by instrument, then by installing multiple groups fixing bolt (4) tentatively to room on fixing piece (1)
Panel (2) is fixed；
Step 5: pea gravel concreten perfusion
In roof boarding (2) bottom, mould (5) are hung in installation, and pea gravel concreten then is perfused to the gap between every group of roof boarding (2), are inserted
It is closely knit, on some strength to be achieved next step construction could be carried out in top surface；
Step 6: shockproof series connection
After roof boarding (2) is laid on the gable of building, passed through from the lightening hole of roof boarding (2) with metal strip (6), by phase
Adjacent roof boarding (2) is together in series, and then the two ends of metal strip (6) are fixed on wall, makes original individual roof boarding
(2) it is linked to be entirety；
Step 7: it is laid with
Dope layer, waterproof roll, isolation screed and pea gravel concreten layer are laid on roof boarding (2) as waterproof construction；
Step 8: bottom smoothes out and detection
Roof boarding (2) bottom is smoothed out by cement mortar, waterproof experiment and shockproof experiment are then done on roof boarding (2).
2. a kind of shockproof installation method of prefabricated roof according to claim 1, it is characterised in that: in the step 1
With ground grading, dig pit, built-in connection, solidification one or more of ground method pre-process ground, with screw
Connection, expansion bolt connection, mortise-tenon joint, angle bar are connected, are snapped connection, linking up with connection, adhesive connection, cement mortar connection
One or more of the combined stack of method build a wall body, then place multiple groups fixing piece (1) at the top of wall.
3. a kind of shockproof installation method of prefabricated roof according to claim 1, it is characterised in that: in the step 2
First by structural plan layout drawing roof truss wind up top surface pop-up geometric center lines, popped up respectively from span centre to both ends skylight frame,
Roof boarding (2) installs directrix, then pops up installation center line, the installation site of upper lower edge two sides pop-up supporting jointing part in end
Line pops up vertical bar center line.
4. a kind of shockproof installation method of prefabricated roof according to claim 1, it is characterised in that: in the step 4
When roof boarding (2) is tentatively fixed, gap between compacted roof boarding (2) is answered, when in place accurate, when still having the gap, using thermal insulation material
It fills, while the degree of fastening should be grasped when being fastened and fixed bolt, can not be excessive, can excessively seal washer be made to turn over, even
Roof boarding (2) is pressed recessed and ponding, fastening can not enough make to seal not in place and leak.
5. a kind of shockproof installation method of prefabricated roof according to claim 1, it is characterised in that: in the step 4
Adjustment plate slit width degree is answered when the width dimensions of the depth size in room and floor are adapted, plate stitch width is not preferably less than 40 millis
Rice prepares plate stitch reinforcing bar by design when plate stitch is wider than 60 millimeters, and the length of plate people's support is long to should be greater than 70 millimeters to plate,
Short plate should be greater than 35 millimeters, and plate must sit in the right seat by design requirement, must not misplace plate number.
6. a kind of shockproof installation method of prefabricated roof according to claim 1, it is characterised in that: in the step 5
In roof boarding (2) bottom, mould (5) are hung in installation, and pea gravel concreten then is perfused to the gap between every group of roof boarding (2), inserts close
It is real, next step construction could be carried out in top surface on some strength to be achieved, microlith is also finally perfused between adjacent fixing piece (1)
Concrete improves the fastness of installation.
7. a kind of shockproof installation method of prefabricated roof according to claim 1, it is characterised in that: in the step 5
After hanging mould perfusion pea gravel concreten, mouth will stay 25-35 mm wide under roofing plate stitch.
8. a kind of shockproof installation method of prefabricated roof according to claim 1, it is characterised in that: the step 6 is worked as
When prefabricated roof is laid on the gable of building, drill in the gable overlapping of prefabricated roof and building, in hole
It is inserted into fixing lock, is connected together by fixed pin and gable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174696.4A CN109252681B (en) | 2018-10-09 | 2018-10-09 | Quakeproof installation method of roof prefabricated member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174696.4A CN109252681B (en) | 2018-10-09 | 2018-10-09 | Quakeproof installation method of roof prefabricated member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109252681A true CN109252681A (en) | 2019-01-22 |
| CN109252681B CN109252681B (en) | 2021-08-17 |
Family
ID=65045181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174696.4A Active CN109252681B (en) | 2018-10-09 | 2018-10-09 | Quakeproof installation method of roof prefabricated member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109252681B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787651A (en) * | 2011-05-20 | 2012-11-21 | 天津中金博奥重工机械有限责任公司 | Prefabricated plate combined house |
| CN202925931U (en) * | 2012-08-17 | 2013-05-08 | 雅致集成房屋股份有限公司 | Flat roof lightweight steel construction simply building |
| CN103243830A (en) * | 2012-02-08 | 2013-08-14 | 上海奇谋能源技术开发有限公司 | Quakeproof installing method of roof prefabricated members |
| CN104563288A (en) * | 2014-10-30 | 2015-04-29 | 徐曼 | Reinforced concrete frame gridding slab prefabricated energy-saving house |
| CN206873780U (en) * | 2017-06-30 | 2018-01-12 | 南阳理工学院 | A kind of greening building energy saving roofing |
-
2018
- 2018-10-09 CN CN201811174696.4A patent/CN109252681B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787651A (en) * | 2011-05-20 | 2012-11-21 | 天津中金博奥重工机械有限责任公司 | Prefabricated plate combined house |
| CN103243830A (en) * | 2012-02-08 | 2013-08-14 | 上海奇谋能源技术开发有限公司 | Quakeproof installing method of roof prefabricated members |
| CN202925931U (en) * | 2012-08-17 | 2013-05-08 | 雅致集成房屋股份有限公司 | Flat roof lightweight steel construction simply building |
| CN104563288A (en) * | 2014-10-30 | 2015-04-29 | 徐曼 | Reinforced concrete frame gridding slab prefabricated energy-saving house |
| CN206873780U (en) * | 2017-06-30 | 2018-01-12 | 南阳理工学院 | A kind of greening building energy saving roofing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109252681B (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2457982A (en) | Method of producing building panels | |
| CN110612373A (en) | Prefabricated pre-decorated volume construction of buildings | |
| US5099623A (en) | Prefabricated wall insert and method of installation | |
| US20220049502A1 (en) | Systems and methods for retrofitting an existing building | |
| RU2155256C2 (en) | Structural system for construction of buildings, particularly, single-family houses | |
| RU98115133A (en) | CONSTRUCTION SYSTEM FOR BUILDING BUILDINGS, IN PARTICULAR ONE-FAMILY HOUSES | |
| CN109252681A (en) | A kind of shockproof installation method of prefabricated roof | |
| CN204001289U (en) | There is the light steel keel partition that carries the arm of encorbelmenting | |
| CN115853270A (en) | Heat-preservation construction process | |
| CN103422671B (en) | The construction method of integrated technique show house for building engineering construction | |
| CN208870336U (en) | Fixed component is stitched in a kind of assembled integrated wall brick system | |
| AU2014252765B2 (en) | Slab construction | |
| DE3416084A1 (en) | Facade-insulating elements | |
| CN217924650U (en) | Connection structure of frame-wrapped column and ALC (automatic level control) plate | |
| JP3225395B2 (en) | Unit type metal tile roof, unit type metal tile roof set and construction method | |
| CN213806205U (en) | Tile hanging sloping roof | |
| JP4953482B2 (en) | Opening structure in the outer insulation wall of a reinforced concrete building | |
| CN212561968U (en) | Ultra-light foamed cement external wall insulation board | |
| CN206971867U (en) | Complete prefabricated anti-vibration house system | |
| CN208701927U (en) | A kind of anti-bank of waterproof equipped with steel construction | |
| GB2181762A (en) | Tie rods for walls of prefabricated buildings | |
| GB2063954A (en) | Lathing of a building framework | |
| JP3277332B2 (en) | Wall frame waterproofing method in frame wall method | |
| DiPaola | Paso Robles Residence | |
| JP2003313946A (en) | Building method for steel structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190927 Address after: 528300 East Office Building 201-11, No. 11 Junye East Road, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant after: Guangdong Bozhilin Robot Co., Ltd. Address before: Room 105-46536, No. 6 Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province Applicant before: Dingchen Construction Management Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |