CN107165436B - Brick wall reinforcing structure - Google Patents
Brick wall reinforcing structure Download PDFInfo
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- CN107165436B CN107165436B CN201710558577.8A CN201710558577A CN107165436B CN 107165436 B CN107165436 B CN 107165436B CN 201710558577 A CN201710558577 A CN 201710558577A CN 107165436 B CN107165436 B CN 107165436B
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- reinforcing steel
- brick wall
- reinforcements
- horizontal
- bars
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- 239000011449 brick Substances 0.000 title claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 25
- 230000002787 reinforcement Effects 0.000 claims abstract description 26
- 238000004873 anchoring Methods 0.000 claims abstract description 17
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 55
- 239000011083 cement mortar Substances 0.000 abstract description 13
- 239000002344 surface layer Substances 0.000 abstract description 5
- 239000011241 protective layer Substances 0.000 abstract description 2
- 239000011505 plaster Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 35
- 239000010959 steel Substances 0.000 description 35
- 235000019353 potassium silicate Nutrition 0.000 description 16
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 16
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 8
- 239000011268 mixed slurry Substances 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a brick wall reinforcing structure which is characterized in that reinforcement cuffs are arranged at mortar joints of a brick wall, reinforcement cuffs in different rows are arranged in a staggered mode, reinforcements of the reinforcement cuffs penetrate through horizontal mortar joints of the brick wall to form closed cuffs, horizontal reinforcements are arranged on the surface of the brick wall, after being fixed by anchoring reinforcements, segmented prestress tensioning is carried out, a segmented prestress tensioning degree unit is the distance between adjacent reinforcement cuffs in the same row, the horizontal reinforcements are tensioned to become broken-line reinforcements, the broken-line reinforcements in the positions with the maximum tensioning lengths in the adjacent rows are welded and fixed by reinforcement braces, the reinforcement braces are welded with the anchoring reinforcements reserved in the brick wall, the diameters of the anchoring reinforcements are 8-10 mm, the anchoring reinforcements extend into reserved holes of the brick wall, cement mortar plaster serves as a protective layer after prestress tensioning is finished, the thickness of a cement mortar surface layer is 25-30 mm, and a reinforcement mesh is hung on the outer sides of the broken-line reinforcements.
Description
Technical Field
The invention relates to a reinforcing structure, in particular to a brick wall reinforcing structure.
Background
The brick wall is reinforced when bearing capacity is insufficient, the reinforcing effect is not good by simply adopting reinforcing steel bars, the reinforcing steel bars added later are difficult to form a whole with the original brick wall when bearing, namely the original brick wall plays a role when bearing, then the reinforcing steel bars added later play a role, even the reinforcing steel bars are participated in bearing when the original brick wall reaches the limit, so that the reinforcing member can be in an unsafe state, brittle failure can occur under larger bearing capacity, and how to make the reinforcing steel bars added later and the brick wall cooperatively bear force is the subject to be faced by engineering technicians.
Disclosure of Invention
The invention provides a brick wall reinforcing structure, which solves the problem that reinforcing steel bars and a brick wall cannot be stressed cooperatively.
According to the invention, reinforcing steel bar hoops are arranged at the positions of mortar joints at intervals of 2.5-3 m, the diameters of the reinforcing steel bar hoops are 8-10 mm, different rows of reinforcing steel bar hoops are arranged in a staggered manner, reinforcing steel bars of the reinforcing steel bar hoops penetrate through horizontal mortar joints of the brick wall to form closed hoops, horizontal reinforcing steel bars are arranged on the surface of the brick wall, the vertical spacing between the horizontal reinforcing steel bars is 150-300 mm, the diameters of the horizontal reinforcing steel bars are 8-10 mm, the horizontal reinforcing steel bars are stretched by adopting segmented prestress after being fixed by horizontal reinforcing steel bar anchoring bars, segmented prestress stretching degree units are the distance between adjacent rows of reinforcing steel bar hoops, the horizontal reinforcing steel bars are stretched to form broken line reinforcing steel bars, the broken line reinforcing steel bars at the maximum length positions of adjacent rows are welded and fixed by adopting stretching reinforcing steel bar bracing bars, the bracing steel bars are welded with the anchoring steel bars reserved in the brick wall, the diameters of the anchoring, to prevent corrosion and creep of the steel reinforcement. The thickness of the cement mortar surface layer is 25-30 mm, in order to enable the cement mortar surface layer and the steel bars on the surface of the brick wall to form a whole, a steel bar mesh is hung outside the broken line steel bars, the diameter of the steel bars adopted by the steel bar mesh is 6mm, and the distance is 200 m.
The construction steps comprise:
(1) cleaning wall cracks
If the wall body has cracks, the cracks can generate compression deformation during prestress tensioning, so that prestress loss is caused, and the aim of unloading reinforcement cannot be fulfilled, so that the cracks of the wall body must be reinforced.
The joint is grouted by adopting the water glass mixed slurry, and the water glass mixed slurry is prepared as follows: the water glass is diluted by dimethylbenzene, the weight ratio of the dimethylbenzene to the water glass is 0.3, the diluted water glass slurry is mixed with cement, and the weight ratio of the diluted water glass slurry to the cement is 0.5, so that the water glass mixed slurry is formed.
When in operation, the dust and the scum on the surface of the concrete with the width of 100mm on both sides of the crack are removed by a steel wire brush, and then the crack is sealed by water glass mixed slurry. And fixing the needles at the wider part of the crack every 700mm, reserving a space of 2mm between the two needles to be used as an exhaust hole without sealing, sleeving the needles one by using a high-pressure grouting pump, and pressing the slurry into the crack until the slurry flows out from the exhaust hole adjacent to the needles. Stopping for 30min after the first grouting is finished, and performing secondary filling again. And performing prestress tension application operation after 2d curing.
(2) Setting anchoring ribs and reinforcing bar hoops
The brick wall is drilled with a preformed hole, the diameter of the preformed hole is 2-3 mm larger than that of the anchoring rib, dust in the hole is blown out by air after the drilling is finished, the anchoring rib is placed into the preformed hole, and epoxy resin mortar is filled in a gap between the anchoring rib and the preformed hole.
The steel bar hoop penetrates through a horizontal mortar joint of the brick wall and is welded into a closed hoop.
(3) Installing horizontal reinforcing bars
And the horizontal steel bars are welded with the steel bar hoop.
(4) Horizontal reinforcement prestress tensioning
A lever-type clamping tool is adopted for prestress tensioning, and the ratio of a resistance arm to a power arm of the lever-type clamping tool is 0.1-0.015.
Because can relate to the lever clamping tool and press from both sides the stress loss that leads to the fact many times and hold together, the stress loss of reinforcing bar brace and anchor bar welding, the stress loss of reinforcing bar relaxation in prestressing force tensioning process, so horizontal reinforcing bar prestressing force adopts the overstretch, and table 1 is the prestressing force loss coefficient condition of different stretch-draw lengths, according to a large amount of test results, adopts control stress overstretch 9%.
TABLE 1 prestress loss coefficients for different tension lengths
| Length of tension | 2.5m | 2.6m | 2.7m | 2.8m | 2.9 | 3m | |
| 1 time of | 0.091 | 0.089 | 0.089 | 0.090 | 0.091 | 0.088 | |
| 2 times (one time) | 0.089 | 0.091 | 0.090 | 0.091 | 0.090 | 0.090 | |
| 3 times of | 0.088 | 0.090 | 0.092 | 0.090 | 0.089 | 0.089 | |
| 4 times (twice) | 0.090 | 0.092 | 0.090 | 0.088 | 0.090 | 0.091 | |
| 5 times (twice) | 0.092 | 0.090 | 0.091 | 0.090 | 0.088 | 0.090 | |
| 6 times of | 0.091 | 0.088 | 0.088 | 0.092 | 0.090 | 0.092 |
(5) Cement mortar surface course construction
The counter-pulling steel bar of installation reinforcing bar net adopts 10mm to the counter-pulling steel bar diameter, hangs and establishes reinforcing bar net and brush with cement mortar, and cement mortar surface course becomes alive by the cubic, and the thickness of plastering at every turn is 8 ~ 10 mm. And after the completion, the water spraying maintenance is not less than 7 days.
The steel bar hoop, the steel bar brace and the anchoring bar can be processed by steel bar waste materials, so the cost is lower.
The prestressed reinforcement and the brick wall are integrated, so that the prestressed reinforcement brick wall has great effects of reducing the stress level of the brick wall and exerting the bearing capacity of the prestressed reinforcement, and has better mechanical property. The invention has convenient construction operation and strong reliability.
Drawings
Fig. 1 is a schematic view of a brick wall reinforcing structure.
In the drawings: 1. reinforcing bar cuff, 2, broken line reinforcing bar, 3, reinforcing bar brace, 4, anchor muscle, 5, brick wall, 6, horizontal reinforcement.
Detailed Description
In the embodiment, reinforcing steel bar cuffs 1 are arranged at the positions of mortar joints of a brick wall 5 every 2.5-3 m, the diameter of each reinforcing steel bar cuff 1 is 8-10 mm, reinforcing steel bars of the reinforcing steel bar cuffs 1 are arranged in a staggered mode in different rows, the reinforcing steel bars of the reinforcing steel bar cuffs 1 penetrate through horizontal mortar joints of the brick wall 5 to form closed cuffs, horizontal reinforcing steel bars 6 are arranged on the surface of the brick wall 5, the vertical distance between the horizontal reinforcing steel bars 6 is 150-300 mm, the diameter of each horizontal reinforcing steel bar 6 is 8-10 mm, the horizontal reinforcing steel bars 6 are fixed by anchoring steel bars 4 and then are tensioned by adopting segmented prestress, a segmented prestress tensioning degree unit is the distance between adjacent reinforcing steel bar cuffs 1 in the same row, the horizontal reinforcing steel bars 6 are changed into broken line reinforcing steel bars 2 after being tensioned, the broken line reinforcing steel bars 2 at the positions with the maximum tensioning lengths of adjacent rows are welded and fixed by adopting reinforcing steel bar braces 3, the reinforcing steel bar, after the prestress tensioning is finished, the cement mortar is plastered to be used as a protective layer to prevent the steel bar from being corroded and creeping. The thickness of the cement mortar surface layer is 25-30 mm, in order to enable the cement mortar surface layer and the steel bars on the surface of the brick wall 5 to form a whole, a steel bar mesh is hung outside the broken line steel bars 2, the diameter of the steel bars adopted by the steel bar mesh is 6mm, and the distance is 200 m.
The construction steps comprise:
(1) cleaning wall cracks
The joint is grouted by adopting the water glass mixed slurry, and the water glass mixed slurry is prepared as follows: the water glass is diluted by dimethylbenzene, the weight ratio of the dimethylbenzene to the water glass is 0.3, the diluted water glass slurry is mixed with cement, and the weight ratio of the diluted water glass slurry to the cement is 0.5, so that the water glass mixed slurry is formed.
When in operation, the dust and the scum on the surface of the concrete with the width of 100mm on both sides of the crack are removed by a steel wire brush, and then the crack is sealed by water glass mixed slurry. And fixing the needles at the wider part of the crack every 700mm, reserving a space of 2mm between the two needles to be used as an exhaust hole without sealing, sleeving the needles one by using a high-pressure grouting pump, and pressing the slurry into the crack until the slurry flows out from the exhaust hole adjacent to the needles. Stopping for 30min after the first grouting is finished, and performing secondary filling again. And performing prestress tension application operation after 2d curing.
(2) Setting an anchoring rib 4 and a reinforcing bar hoop 1
The brick wall 5 bores and establishes the preformed hole, and preformed hole diameter ratio anchor muscle 4 is 2 ~ 3mm big, and the downthehole dust of hole is blown completely in the air blast after the drilling finishes, puts into the preformed hole again anchor muscle 4, and epoxy mortar is filled in the space between anchor muscle 4 and the preformed hole.
The steel bar hoop 1 penetrates through a horizontal mortar joint of a brick wall 5 to be welded into a closed hoop.
(3) Installing horizontal reinforcing steel bars 6
And the horizontal steel bars 6 are welded with the steel bar hoop 1.
(4) Horizontal steel bar 6 prestress tension
A lever-type clamping tool is adopted for prestress tensioning, and the ratio of a resistance arm to a power arm of the lever-type clamping tool is 0.1-0.015.
The horizontal steel bar 6 adopts the prestressing force of over-tensioning, and adopts the control stress of over-tensioning 9 percent.
(5) Cement mortar surface course construction
The counter-pulling steel bar of installation reinforcing bar net adopts 10mm to the counter-pulling steel bar diameter, hangs and establishes reinforcing bar net and brush with cement mortar, and cement mortar surface course becomes alive by the cubic, and the thickness of plastering at every turn is 8 ~ 10 mm. And after the completion, the water spraying maintenance is not less than 7 days.
The steel bar hoop 1, the steel bar brace 3 and the anchoring bar 4 adopted in the embodiment are processed by steel bar waste.
Claims (2)
1. A brick wall reinforcement structure is characterized in that reinforcing steel bar hoops are arranged at mortar joint positions of a brick wall every 2.5-3 m, the diameter of each reinforcing steel bar hoop is 8-10 mm, reinforcing steel bars of different rows of reinforcing steel bar hoops are arranged in a staggered mode, the reinforcing steel bars of the reinforcing steel bar hoops penetrate through a horizontal mortar joint of the brick wall to form a closed hoop, horizontal reinforcing steel bars are arranged on the surface of the brick wall, after the horizontal reinforcing steel bars and the reinforcing steel bar hoops are welded and fixed, the horizontal reinforcing steel bars are stretched by segmented prestress, a segmented prestress stretching degree unit is the distance between adjacent reinforcing steel bar hoops in the same row, the horizontal reinforcing steel bars are stretched to form broken line reinforcing steel bars, the broken line reinforcing steel bars in the positions with the maximum stretching lengths in the adjacent rows are welded and fixed by reinforcing steel bar bracing pieces, the reinforcing steel bar bracing pieces are welded with anchoring bars reserved in the brick wall, the diameter of the anchoring bars is 8-10, and a reinforcing mesh is hung outside the broken line reinforcing steel bars.
2. The brick wall reinforcement structure according to claim 1, wherein the vertical distance between the horizontal reinforcing bars is 150 to 300mm, and the diameter of the horizontal reinforcing bars is 8 to 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710558577.8A CN107165436B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforcing structure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710558577.8A CN107165436B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforcing structure |
| CN201610127817.4A CN105625742B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforcement structure |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610127817.4A Division CN105625742B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforcement structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165436A CN107165436A (en) | 2017-09-15 |
| CN107165436B true CN107165436B (en) | 2020-01-07 |
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710555532.5A Active CN107227860B (en) | 2016-02-17 | 2016-02-17 | Brick wall prestressed reinforcement structure |
| CN201710555531.0A Active CN107386676B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforced construction method |
| CN201710558577.8A Active CN107165436B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforcing structure |
| CN201610127817.4A Expired - Fee Related CN105625742B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforcement structure |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710555532.5A Active CN107227860B (en) | 2016-02-17 | 2016-02-17 | Brick wall prestressed reinforcement structure |
| CN201710555531.0A Active CN107386676B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforced construction method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610127817.4A Expired - Fee Related CN105625742B (en) | 2016-02-17 | 2016-02-17 | Brick wall reinforcement structure |
Country Status (1)
| Country | Link |
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| CN (4) | CN107227860B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532655B (en) * | 2017-01-21 | 2019-11-29 | 叶长青 | The deviation rectification construction method of brick-concrete building |
| JP6936613B2 (en) * | 2017-04-20 | 2021-09-15 | 清水建設株式会社 | Masonry reinforcement structure and reinforcement method |
| CN108560949B (en) * | 2018-06-28 | 2024-06-04 | 中冶建工集团有限公司 | Outer vertical face reinforcing structure and outer vertical face reinforcing method for adobe wall |
| CN112049461B (en) * | 2020-07-27 | 2022-05-17 | 成龙建设集团有限公司 | Reinforcing method for ancient building brick wall |
| CN113417222B (en) * | 2021-08-02 | 2022-07-29 | 杨伟涛 | Road and bridge crack processing apparatus |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100654781B1 (en) * | 2006-02-20 | 2006-12-08 | 이완섭 | Bricks wall reinforcing method |
| JP2010242393A (en) * | 2009-04-07 | 2010-10-28 | Shimizu Corp | Seismic strengthening structure |
| JP5393263B2 (en) * | 2009-06-02 | 2014-01-22 | 株式会社竹中工務店 | Masonry wall reinforcement method and masonry structure. |
| RU2431727C1 (en) * | 2010-02-01 | 2011-10-20 | Федеральное государственное учреждение высшего профессионального образования "Орловский государственный аграрный университет" (ФГОУ ВПО ОрелГАУ) | Method to strengthen bent monolithic reinforced concrete structures and device for its realisation |
| CN201943212U (en) * | 2010-12-22 | 2011-08-24 | 上海维固工程实业有限公司 | Brick wall reinforcement structure |
| CN202431015U (en) * | 2011-12-20 | 2012-09-12 | 陕西省建筑科学研究院 | Masonry wall reinforcing device for building |
| DE102012109950A1 (en) * | 2012-10-18 | 2014-05-08 | Hering Bau Gmbh & Co. Kg | Composite system for reinforcing components |
| CN202925922U (en) * | 2012-11-04 | 2013-05-08 | 西安建筑科技大学 | Combination reinforcing device for brick masonry wall |
| CN202925925U (en) * | 2012-11-04 | 2013-05-08 | 西安建筑科技大学 | Reinforcing device for brick masonry wall |
| CN103835521A (en) * | 2012-11-20 | 2014-06-04 | 贵阳铝镁设计研究院有限公司 | Brick wall reinforcing method and structure |
| CN103352581B (en) * | 2013-07-09 | 2015-12-09 | 北京筑福国际工程技术有限责任公司 | Adopt the method for inner prestressed reinforcement bolt anchorage sintered clay brick masonry structure |
| CN103912133B (en) * | 2014-03-19 | 2016-01-13 | 华北水利水电大学 | Vierendeel girder transverse stretching pre-stressed carbon fiber sheet material reinforcement means |
| CN203905526U (en) * | 2014-05-06 | 2014-10-29 | 北京筑福建筑事务有限责任公司 | Building body mortar joint reinforcing structure |
| CN104405139B (en) * | 2014-12-03 | 2017-01-11 | 西南科技大学 | Strengthening method for stone wall body |
| CN204703545U (en) * | 2015-05-05 | 2015-10-14 | 北京中建建筑设计院有限公司 | A kind of reinforcing mixing board wall for brick is taken root structure |
-
2016
- 2016-02-17 CN CN201710555532.5A patent/CN107227860B/en active Active
- 2016-02-17 CN CN201710555531.0A patent/CN107386676B/en active Active
- 2016-02-17 CN CN201710558577.8A patent/CN107165436B/en active Active
- 2016-02-17 CN CN201610127817.4A patent/CN105625742B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107386676B (en) | 2019-03-08 |
| CN105625742B (en) | 2017-12-15 |
| CN107165436A (en) | 2017-09-15 |
| CN105625742A (en) | 2016-06-01 |
| CN107386676A (en) | 2017-11-24 |
| CN107227860A (en) | 2017-10-03 |
| CN107227860B (en) | 2019-06-11 |
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Effective date of registration: 20231108 Address after: 014000 No. 121 Fuqiang Road, Qingshan District, Baotou City, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Baotou Industrial Group Co.,Ltd. Address before: Ouhai District of Zhejiang city in Wenzhou province 325000 Rong Road No. 39 Patentee before: Zhu Kui |