CN101318350A - Concrete cavity die component forming method - Google Patents
Concrete cavity die component forming method Download PDFInfo
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- CN101318350A CN101318350A CNA2007102007965A CN200710200796A CN101318350A CN 101318350 A CN101318350 A CN 101318350A CN A2007102007965 A CNA2007102007965 A CN A2007102007965A CN 200710200796 A CN200710200796 A CN 200710200796A CN 101318350 A CN101318350 A CN 101318350A
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Abstract
The invention relates to a method for molding concrete cavity die components and comprises the following steps: 1) preparing soft slurry; 2) putting the soft slurry in a female die (1) and a male die (2); 3) imposing pressure on the male die (2) to attach to the female die (1); 4) prolapsing the mould die from the female die (1) or the male die (2); 5) trimming flash when necessary; thus, the preparation method has the advantages of simple and convenient preparation and high production efficiency; the product prepared by the method has the advantages of simple structure, convenient transportaiton, low transportation cost, little occupation area, convenient assembly, high intensity, large rigidity, high damage resistance and the like, thereby achieving the purpose of the invention. The concrete cavity die components can be used in hollow floors, roofs, walls, foundation slabs and hollow bridges of cast-in-place reinforced concrete and cast-in-place prestressed reinforced concrete, particularly in hollow girderless floors.
Description
(1) technical field
The present invention relates to a kind of manufacturing process of concrete cavity-creating mould component.
(2) background technology
The most of precast hollow slab that adopts of the building of brick mix structure and frame structure is as building cover board at present, this building cover board has advantages such as speed of application is fast, cost is low, but owing to firmly do not link between adjacent two precast hollow slabs, only use cement mortar blind, thereby not only globality is poor, be unfavorable for antidetonation, and phenomenons such as slit cracking, infiltration often occur, put to no little inconvenience and psychological pressure to resident family.In order to address the above problem, a lot of building have adopted the method for Cast-in-place concrete floor (hollow, solid).Though the Cast-in-place concrete floor has solved antidetonation and problems of crack, when construction, to use a large amount of templates, like this, not only increased expense, and the speed of application that slowed down, prolonged the duration.The patent No. is ZL00203695.9's " combination concrete hidden rib building cover board " utility model patent, it is made up of prefabricated plate, formwork, dark rib, upper plate, each prefabricated plate is horizontal positioned at interval, on prefabricated plate, be fixed with formwork, formwork comprises upper plate and side plate on every side, be provided with dark rib between contiguous prefabricated thin plate or the formwork, upper plate covers on the formwork, and connect as one with dark rib, this kind building cover board no longer needs to use in a large number template, accelerate speed of application, shortened the duration, thereby reduced cost.When this mould casing component is applied to the close rib building roof construction, can save prefabricated plate.But after this mould casing component was applied to cast-in-situ concrete hollow floor, formed superstructure will inevitably be installed component and fittings such as various circuits, often need punch on the superstructure of newly repairing and get into the cave, and difficulty is installed, and repaired very trouble.Therefore, develop a kind of manufacturing process of novel concrete cavity-creating mould component for being badly in need of.
(3) summary of the invention
The object of the present invention is to provide a kind of manufacturing process of concrete cavity-creating mould component, it is simple and convenient to have making, the production efficiency height, and simple, the convenient transportation of the product structure that obtains by method, cost of transportation is low, take that working face is little, assembly unit is convenient, intensity is high, rigidity greatly, characteristics such as cracky not.
Solution of the present invention is on the basis of existing technology, the manufacturing process of concrete cavity-creating mould component:
1) prepares soft slurry;
2) soft slip is positioned over former or formpiston;
3) formpiston is relative with former closes up pressurization;
4) deviate from die component from former or formpiston;
5) repair overlap in case of necessity.
Like this, this preparation method has making simple and convenient, the production efficiency height, and simple, the convenient transportation of the product structure that obtains by method, cost of transportation is low, take that working face is little, assembly unit is convenient, intensity is high, rigidity greatly, characteristics such as cracky not, thereby reached purpose of the present invention, this method can be produced high-intensity various forms of member product, the hollow building cover, roof system, body of wall, sole plate and the hollow bridges that are applicable to various cast-in-situ reinforced concretes or prestressed reinforced concrete are used, and are particularly useful for hollow arch without beam and use.
Feature of the present invention is also that former is relative with the formpiston coaxial line and pressurizes.Like this, former is relative with the formpiston coaxial line to pressurize, and can form the making flow process, makes simply, forms streamline production, and the product standard that obtains is not easy to damage, the product quality height, owing to be the product that is pressed into, intensity and toughness is strong.
Feature of the present invention also is around the former cloudy step is arranged.Like this, can produce the member product that has step or inner corner trim, after product is applied to the Cast-in-place concrete floor, can form cast-in-place reinforcement, can improve the holistic resistant behavior of floor at step or inner corner trim place.
Feature of the present invention also is around the formpiston balcony rank are arranged.Like this, can produce the member product that has step or inner corner trim, after product is applied to the Cast-in-place concrete floor, can form cast-in-place reinforcement, can improve the holistic resistant behavior of floor at step or inner corner trim place.
Feature of the present invention also is around former or the formpiston flash mouth is arranged.Like this, can overflow unnecessary slip, be unlikely to destroy machine, also can guarantee simultaneously the quality of the construction material produced from the flash mouth.
Feature of the present invention is that also third step is that former is fixed, and formpiston closes up pressurization to former.Like this, fixedly former injects slip in former, starts formpiston then and closes up pressurization formation member, and manufacturing speed is fast, member product strength rigidity height.
Feature of the present invention is that also third step is that formpiston is fixed, and former closes up pressurization to formpiston.Like this, fixedly formpiston is laid slip on formpiston, starts former then and closes up pressurization formation member, and manufacturing speed is fast, member product strength rigidity height.
Feature of the present invention is that also third step is that level is closed up pressurization.Like this, can actual needs employing level close up pressurization, can produce local high-strength product.
Feature of the present invention is that also third step is vertically to close up pressurization.Like this, can the actual needs employing vertically close up pressurization, can produce local high-strength product.
Feature of the present invention also is to be provided with in the die component oviduct.Like this, be provided with oviduct in the die component, can in die component, lay other members easily, the needs that convenient construction is used perhaps are used to pour into a mould Cast-in-place concrete, form cast-in-place pier, post, integral intensity and rigidity have been improved widely, help ensuring the quality of products, and Cast-in-place concrete enters the following very convenient of product members by being communicated with oviduct, easily water the real moulding of puddling.
Feature of the present invention is that also the foam support pier is arranged in the die component.Like this, when the foam support pier is arranged in the die component, stress performance and bulk strength that can the enhancement mode member; And inner adopt foaming structure, thus form element in light weight, cost is low, anti-seismic performance good, and produces simple, carrying easy construction.
Feature of the present invention is that also the foam support pipe is arranged in the die component.Like this, when the foam support pipe is arranged in the die component, stress performance and bulk strength that can the enhancement mode member; And inner adopt foaming structure, thus form element in light weight, cost is low, anti-seismic performance good, and produces simple, carrying easy construction.
Feature of the present invention is that also the foam support plate is arranged in the die component.Like this, when the foam support plate is arranged in the die component, stress performance and bulk strength that can the enhancement mode member; And inner adopt foaming structure, thus form element in light weight, cost is low, anti-seismic performance good, and produces simple, carrying easy construction.
Feature of the present invention also is to have in the die component inflation sealing stay pipe, gripper shoe, support ring.Like this, when inflation sealing stay pipe, gripper shoe, support ring are arranged in the die component, can strengthen the impact resistance of form element, strengthen the stress performance and the bulk strength of form element; And inner adopt airbag structure, thus form element in light weight, cost is low, anti-seismic performance good, and produces simple, carrying easy construction.
Feature of the present invention is that also described base-material is plastics.Like this, when base-material was plastics, parts had distinctive toughness of plastics and impact resistance, can adopt according to actual conditions, can effectively improve construction quality.
Feature of the present invention is that also described base-material is cement mortar or Cement fibre mortar.Like this, when base-material was cement mortar or Cement fibre mortar, parts had cement mortar or the distinctive strength and stiffness of Cement fibre mortar, can adopt according to actual conditions, can effectively improve construction quality.
Feature of the present invention is that also the inwall of described basin-shaped components is provided with at least one reinforcement.Like this, when the inwall of basin-shaped components is provided with at least one reinforcement, can improve the bulk strength and the rigidity of parts effectively.
Feature of the present invention is that also the outer wall of described basin-shaped components is provided with at least one reinforcement.Like this, when the outer wall of basin-shaped components is provided with at least one reinforcement, can improve the bulk strength and the rigidity of parts effectively.
Feature of the present invention is also that described reinforcement is parallel to each other, quadrature or oblique setting.Like this, when reinforcement is parallel to each other, when quadrature or oblique are provided with, the stress-bearing capability of discrete part uniformly can further improve the rigidity and the intensity of parts.
Feature of the present invention also is to be provided with at least one bracing boom or a slice ribbed stiffener or be provided with both simultaneously at least in die component.Like this, when in die component, being provided with at least one bracing boom or a slice ribbed stiffener or when being provided with both simultaneously, member has characteristics such as intensity height, stressed transmission force property is good, in light weight, material consumption is little, cost is low at least.
Feature of the present invention also is to be provided with at least one reinforcing ring in basin-shaped components, reinforcing ring is steel plate ring, concrete ring, moulds ring, wooden ring, porcelain ring or cement mortar ring firmly.Like this, be provided with at least one reinforcing ring in the basin-shaped components, can improve the impact resistance of parts, improve the stress performance of parts; And can reduce construction cost according to the reinforcing ring of actual environment choose reasonable different materials.
Feature of the present invention is that also folder is provided with reinforce in the wall body of basin-shaped components, and reinforce is that steel wire, bar-mat reinforcement, filament, fleece or its combination are provided with.Like this, folder is provided with reinforce in the wall body of basin-shaped components, has improved the strength and stiffness of parts greatly, and can select the reinforce of different materials according to actual conditions, can better improve the stress performance of parts, reduces the cost that parts are made construction.
Feature of the present invention also is also to be provided with on the basin-shaped components ends floating member, and ending floating member is iron wire, rope, steel wire or rubber strip.Like this, also be provided with on the basin-shaped components and end floating member, after parts are applied in the Cast-in-place concrete floor, can prevent that parts are subjected to displacement and float, effectively improve the bulk strength and the rigidity of Cast-in-place concrete floor, the assurance construction quality; And can select the different floating members that ends according to actual conditions, can reduce cost, guarantee construction quality.
Feature of the present invention is that also at least three spikes are arranged on die component.Like this, when at least three spikes are arranged on concrete pore-creating core component, can holding member and ground or construction formwork between distance, can reduce parts is breakage rates, thereby guarantees that parts are quality.
Feature of the present invention also is to be filled with light-weight filler in basin-shaped components, light-weight filler is the foam pellet of foam-plastic blocks, expanded pearlite sillar, expanded vermiculite piece, foaming or aerating concrete piece, haydite concrete piece, straw husk cementing material piece, charcoal concrete piece or cementing.Like this, insulation, the sound insulation value of parts are better, more are applicable to the space structure of insulation, sound isolation requirement.
The shape of cross section that feature of the present invention also is basin-shaped components for circular, oval, square, arc angle is square or chamfering is square.Like this, can select difform basin-shaped components, can effectively improve construction quality according to actual conditions and construction requirement.
(4) description of drawings
Fig. 1 a is that the soft slip of the present invention is positioned over former, the relative preceding structural representation of pressurization that closes up with former of formpiston.
Fig. 1 b is the relative structural representation that closes up pressurization with former of formpiston of the present invention.
Fig. 1 c is after to be that formpiston of the present invention is relative with former close up pressurization, the structural representation of product stripping.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Fig. 3 is the structural representation of the embodiment of the invention 3.
Fig. 4 is the structural representation of the embodiment of the invention 4.
Fig. 5 is the structural representation of the embodiment of the invention 5.
Fig. 6 is the structural representation of the embodiment of the invention 6.
Fig. 7 is the structural representation of the embodiment of the invention 7.
Fig. 8 is the structural representation of the embodiment of the invention 8.
Fig. 9 is the structural representation of the embodiment of the invention 9.
Figure 10 is the structural representation of the embodiment of the invention 10.
Figure 11 is the structural representation of the embodiment of the invention 11.
Figure 12 is the structural representation of the embodiment of the invention 12.
Figure 13 is the structural representation of the embodiment of the invention 13.
Figure 14 is the structural representation of the embodiment of the invention 14.
Figure 15 is the structural representation of the embodiment of the invention 15.
Figure 16 is the structural representation of the embodiment of the invention 16.
(5) specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
The present invention as shown in drawings, the manufacturing process of concrete cavity-creating mould component:
1) prepares soft slurry;
2) soft slip is positioned over former 1 or formpiston 2;
3) formpiston 2 and former 1 are relative closes up pressurization;
4) deviate from die component from former 1 or formpiston 2;
5) repair overlap in case of necessity.
In each accompanying drawing, 1 is former, and 2 is formpiston, below in each accompanying drawing, number identically, its explanation is identical.As shown in Figure 1a, the step of the manufacturing process of concrete cavity-creating mould component: 1) prepare soft slurry; 2) soft slip is positioned over former 1.Shown in Fig. 1 b, the step of the manufacturing process of concrete cavity-creating mould component: 3) formpiston 2 and former 1 are relative closes up pressurization.Shown in Fig. 1 c, the step of the manufacturing process of concrete cavity-creating mould component: 4) deviate from die component from former 1 or formpiston 2; 5) repair overlap in case of necessity.
Feature of the present invention also is former 1 and relative pressurization of formpiston 2 coaxial lines.As shown in Figure 1a, its former 1 and relative pressurization of formpiston 2 coaxial lines.
Feature of the present invention also is around the former 1 cloudy step 3 is arranged.As shown in Figure 2, around its former 1 cloudy step 3 is arranged.
Feature of the present invention also is around the formpiston 2 balcony rank 4 are arranged.As shown in Figure 3, around its formpiston 2 balcony rank 4 are arranged.
Feature of the present invention also is around former 1 or the formpiston 2 the flash mouth is arranged.As shown in Figure 4, around its former 1 or the formpiston 2 the flash mouth is arranged.
Feature of the present invention is that also third step is that former 1 is fixing, and formpiston 2 closes up pressurization to former 1.
Feature of the present invention is that also third step is that formpiston 2 is fixing, and former 1 closes up pressurization to formpiston 2.
Feature of the present invention is that also third step is that level is closed up pressurization.
Feature of the present invention is that also third step is vertically to close up pressurization.
Feature of the present invention also is to be provided with in the die component oviduct 5.As shown in Figure 5, be provided with oviduct 5 in its die component
Feature of the present invention is that also foam support pier 6 is arranged in the die component.As shown in Figure 6, in its die component foam support pier 6 is arranged.
Feature of the present invention is that also foam support pipe 7 is arranged in the die component.As shown in Figure 7, in its die component foam support pipe 7 is arranged.
Feature of the present invention is that also foam support plate 8 is arranged in the die component.As shown in Figure 8, in its die component foam support plate 8 is arranged.
Feature of the present invention also is to have in the die component inflation sealing stay pipe 9, gripper shoe 10, support ring 11.As shown in Figure 9, inflation sealing stay pipe 9 and support ring 11 are arranged in its die component.As shown in figure 10, inflation sealing gripper shoe 10 is arranged in its die component.
Feature of the present invention is that also described base-material is plastics.As shown in figure 10, its described base-material is plastics.
Feature of the present invention is that also described base-material is cement mortar or Cement fibre mortar.As shown in figure 11, its described base-material is the Cement fibre mortar.
Feature of the present invention is that also the inwall of described basin-shaped components 1 is provided with at least one reinforcement 12.As shown in figure 11, the inwall of its described basin-shaped components 1 is provided with reinforcement 12.
Feature of the present invention is that also the outer wall of described basin-shaped components 1 is provided with at least one reinforcement 12.As shown in figure 12, the outer wall of its described basin-shaped components 1 is provided with reinforcement 12.
Feature of the present invention is also that described reinforcement 12 is parallel to each other, quadrature or oblique setting.As shown in figure 12, its described reinforcement 12 is parallel to each other and the quadrature setting.
Feature of the present invention also is to be provided with at least one bracing boom 13 or a slice ribbed stiffener 14 or be provided with both simultaneously at least in die component.As shown in figure 13, it is provided with bracing boom 13 and ribbed stiffener 14 in die component.
Feature of the present invention also is to be provided with at least one reinforcing ring 15 in basin-shaped components 1, reinforcing ring 15 is for steel plate ring, concrete ring, mould ring, wooden ring, porcelain ring or cement mortar ring firmly.As shown in figure 14, it is provided with reinforcing ring 15 in basin-shaped components 1, and reinforcing ring 15 is wooden ring.
Feature of the present invention is that also folder is provided with reinforce 16 in the wall body of basin-shaped components 1, and reinforce 16 is that steel wire, bar-mat reinforcement, filament, fleece or its combination are provided with.As shown in figure 14, it presss from both sides in the wall body of basin-shaped components 1 and is provided with reinforce 16, and reinforce 16 is a fleece.
Feature of the present invention also is also to be provided with on the basin-shaped components 1 ends floating member 17, and ending floating member 17 is iron wire, rope, steel wire or rubber strip.As shown in figure 14, also be provided with on its basin-shaped components 1 and end floating member 17, ending floating member 17 is iron wire.
Feature of the present invention is that also at least three spikes 18 are arranged on die component.As shown in figure 15, it has spike 18 on die component.
Feature of the present invention also is to be filled with light-weight filler 19 in basin-shaped components 1, light-weight filler 19 is the foam pellet of foam-plastic blocks, expanded pearlite sillar, expanded vermiculite piece, foaming or aerating concrete piece, haydite concrete piece, straw husk cementing material piece, charcoal concrete piece or cementing.As shown in figure 16, it is filled with light-weight filler 19 in basin-shaped components 1, and light-weight filler 19 is a foam-plastic blocks.
The shape of cross section that feature of the present invention also is basin-shaped components 1 for circular, oval, square, arc angle is square or chamfering side's 94 shapes.As shown in figure 16, the shape of cross section of its basin-shaped components 1 is square.
Claims (9)
- 2. the manufacturing process of concrete cavity-creating mould component according to claim 1 is characterized in that former (1) and relative pressurization of formpiston (2) coaxial line.
- 3. the manufacturing process of concrete cavity-creating mould component according to claim 1 is characterized in that former (1) has cloudy step (3) all around.
- 4. the manufacturing process of concrete cavity-creating mould component according to claim 1 is characterized in that formpiston (2) has balcony rank (4) all around.
- 5. the manufacturing process of concrete cavity-creating mould component according to claim 1 is characterized in that former (1) or formpiston (2) have the flash mouth all around.
- 6. the manufacturing process of concrete cavity-creating mould component according to claim 1 is characterized in that third step is that former (1) is fixing, and formpiston (2) closes up pressurization to former (1).
- 7. the manufacturing process of concrete cavity-creating mould component according to claim 1 is characterized in that third step is that formpiston (2) is fixing, and former (1) closes up pressurization to formpiston (2).
- 8. the manufacturing process of concrete cavity-creating mould component according to claim 1 is characterized in that third step is that level is closed up pressurization; Perhaps third step is vertically to close up pressurization.
- 9. the die component that manufacturing process according to claim 1 is made is characterized in that being provided with in the die component oviduct (5); Foam support pier (6) is perhaps arranged in the die component; Foam support pipe (7) is perhaps arranged in the die component; Foam support plate (8) is perhaps arranged in the die component; Inflation sealing stay pipe (9), gripper shoe (10), support ring (11) are perhaps arranged in the die component.
- 10. the die component of making according to the described manufacturing process of arbitrary claim in the claim 10 to 14 is characterized in that described base-material is plastics; Perhaps base-material is cement mortar or Cement fibre mortar; Perhaps the inwall of basin-shaped components (1) is provided with at least one reinforcement (12); Perhaps the outer wall of basin-shaped components (1) is provided with at least one reinforcement (12); Perhaps reinforcement (12) be parallel to each other, quadrature or oblique setting; Perhaps in die component, be provided with at least one bracing boom (13) or a slice ribbed stiffener (14) or be provided with both simultaneously at least; Perhaps be provided with at least one reinforcing ring (15) in basin-shaped components (1), reinforcing ring (15) is steel plate ring, concrete ring, moulds ring, wooden ring, porcelain ring or cement mortar ring firmly; Perhaps folder is provided with reinforce (16) in the wall body of basin-shaped components (1), and reinforce (16) is that steel wire, bar-mat reinforcement, filament, fleece or its combination are provided with; Perhaps also be provided with on the basin-shaped components (1) and end floating member (17), ending floating member (17) is iron wire, rope, steel wire or rubber strip; At least three spikes (18) are perhaps arranged on die component; Perhaps be filled with light-weight filler (19) in basin-shaped components (1), light-weight filler (19) is the foam pellet of foam-plastic blocks, expanded pearlite sillar, expanded vermiculite piece, foaming or aerating concrete piece, haydite concrete piece, straw husk cementing material piece, charcoal concrete piece or cementing; Perhaps the shape of cross section of basin-shaped components (1) be circular, oval, square, arc angle is square or chamfering is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102007965A CN101318350A (en) | 2007-06-07 | 2007-06-07 | Concrete cavity die component forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102007965A CN101318350A (en) | 2007-06-07 | 2007-06-07 | Concrete cavity die component forming method |
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| Publication Number | Publication Date |
|---|---|
| CN101318350A true CN101318350A (en) | 2008-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007102007965A Pending CN101318350A (en) | 2007-06-07 | 2007-06-07 | Concrete cavity die component forming method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310474A (en) * | 2010-06-29 | 2012-01-11 | 湖南华廷筑邦建材有限公司 | Die for manufacturing filling body |
| CN103847006A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | System for manufacturing hollow formwork member |
| CN103847011A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | Device for manufacturing hollow formwork assemblies |
| CN103847007A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | Device for manufacturing hollow formwork component |
| CN103847001A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | Method for manufacturing hollow formwork component |
| CN110469042A (en) * | 2019-07-31 | 2019-11-19 | 东南大学 | A kind of prefabricated wallboard, its manufacturing method and its mold |
| CN112847744A (en) * | 2021-02-09 | 2021-05-28 | 苏州华昇建筑科技有限公司 | Precast concrete member forming method, precast concrete member and assembly type building |
-
2007
- 2007-06-07 CN CNA2007102007965A patent/CN101318350A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310474A (en) * | 2010-06-29 | 2012-01-11 | 湖南华廷筑邦建材有限公司 | Die for manufacturing filling body |
| CN103847006A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | System for manufacturing hollow formwork member |
| CN103847011A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | Device for manufacturing hollow formwork assemblies |
| CN103847007A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | Device for manufacturing hollow formwork component |
| CN103847001A (en) * | 2012-12-01 | 2014-06-11 | 湖南邱则有专利战略策划有限公司 | Method for manufacturing hollow formwork component |
| CN110469042A (en) * | 2019-07-31 | 2019-11-19 | 东南大学 | A kind of prefabricated wallboard, its manufacturing method and its mold |
| CN110469042B (en) * | 2019-07-31 | 2021-04-06 | 东南大学 | Prefabricated wallboard, manufacturing method and mold thereof |
| CN112847744A (en) * | 2021-02-09 | 2021-05-28 | 苏州华昇建筑科技有限公司 | Precast concrete member forming method, precast concrete member and assembly type building |
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Effective date of registration: 20101124 Address after: 410205, Hunan Changsha Changsha hi tech Development Zone, Yuelu District Road, No. 8 star industry base Applicant after: Hunan Qiuzeyou Patent Strategy Planning Co., Ltd. Address before: 410011 Hunan province Changsha Furong Road two section 59 Suncheon City 28 floor Applicant before: Qiu Zeyou |
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Application publication date: 20081210 |