CN111677231A - Novel load-bearing leveling plate and preparation method and paving method thereof - Google Patents
Novel load-bearing leveling plate and preparation method and paving method thereof Download PDFInfo
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- CN111677231A CN111677231A CN202010660386.4A CN202010660386A CN111677231A CN 111677231 A CN111677231 A CN 111677231A CN 202010660386 A CN202010660386 A CN 202010660386A CN 111677231 A CN111677231 A CN 111677231A
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- plate
- bearing leveling
- bearing
- load
- die box
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/08—Flooring or floor layers composed of a number of similar elements only of stone or stone-like material, e.g. ceramics, concrete; of glass or with a top layer of stone or stone-like material, e.g. ceramics, concrete or glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
Abstract
The invention discloses a novel bearing leveling plate, a preparation method and a paving method thereof, the novel bearing leveling plate comprises a plate body, an inner screw cylinder part, an outer screw cylinder part and an adjusting bolt, the plate body comprises a base plate and a flat plate layer, the base plate is arranged at the lower end of the flat plate layer, the base plate and the flat plate layer are integrally formed, the inner and outer screw cylinder pieces are arranged in the middle of the plate body and are vertically and fixedly connected with the plate body, the invention provides a novel bearing leveling plate, wherein the novel bearing leveling plate is installed inside an inner screw tube and an outer screw tube, the construction is carried out by adopting the bearing leveling plate, the pollution of cement mortar and cement dust is avoided, the on-site environmental protection standard is improved, meanwhile, the construction period is shortened, the floor heating pavement and the ground decoration are constructed twice and combined into a construction process, the plate body of the floor heating pavement and the ground decoration are used for replacing cement mortar and wet ash used in the two constructions, the thickness is reduced, the material consumption of cement sand is reduced, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of assembly type buildings, in particular to a novel bearing leveling plate and a preparation method and a paving method thereof.
Background
Currently, most buildings in northern areas adopt a ground heating mode, and the traditional paving method is that a heat insulation pad with the thickness of 10mm-20mm is paved on a main body floor slab, then a ground heating pipe is fixedly paved as required, cement mortar is cast on the ground heating pipe, and the ground heating pipe is leveled and solidified for three days, and the construction is finished; after the main building is finished, the ground is decorated, cement and sand are prepared, damp and dry ash is mixed, the ground is leveled, the thickness reaches 30mm-50mm, and then porcelain plates, stone materials, wood plates and the like are paved.
The inventor of this application discovers, it is comparatively complicated that the construction mode is laid including the construction and the ground decoration technology to warm up to present warm up, because wet construction need consume more time, the time limit for a project is longer, and not enough environmental protection, decoration efficiency is lower, be unfavorable for quick construction and use, twice construction mortar adds damp dry ash whole thickness at 80mm-100mm simultaneously, let main part floor bearing increase and make indoor effective high space reduce, the raw materials is extravagant, the cost is also higher, be unfavorable for the popularization of assembled construction, and traditional wet construction makes cement mortar thickness cover on the ground heating coil, make heat-conduction slow and inhomogeneous, and the ground heating coil buries in the mortar, the maintenance difficulty that leaks appears easily.
Disclosure of Invention
The invention aims to provide a novel bearing leveling plate, a preparation method and a paving method thereof, and aims to solve the problems that the existing floor heating paving wet construction mode is long in consumed time, long in construction period, not environment-friendly enough, low in decoration efficiency and not beneficial to rapid construction and use, meanwhile, the bearing of a main floor slab is increased, the indoor effective height space is reduced, raw materials are wasted, the cost is high, and the popularization of assembly type construction is not facilitated, and the traditional floor heating paving wet construction enables the thickness to cover a floor heating pipe, so that the heat conduction is slow and uneven, and the floor heating pipe is buried in mortar, so that water leakage and difficulty in maintenance are easy to occur.
The invention is realized by the following steps:
the utility model provides a novel bearing screed-plate, includes plate body, inside and outside silk section of thick bamboo spare and adjusting bolt, the plate body includes base plate and dull and stereotyped layer, the base plate sets up the lower extreme on dull and stereotyped layer, and base plate and dull and stereotyped layer integrative taking shape, inside and outside silk section of thick bamboo spare sets up at the middle part of plate body, and inside and outside silk section of thick bamboo spare and the perpendicular fixed connection of plate body, adjusting bolt installs the inside at inside and outside silk section of thick bamboo.
Furthermore, a reinforcing layer is arranged between the substrate and the flat plate layer, and the reinforcing layer is fixedly connected with the substrate and the flat plate layer.
Furthermore, the enhancement layer is composed of a plurality of layers of glass fiber mesh cloth, the glass fiber mesh cloth is mutually stacked, and the glass fiber mesh cloth is mutually and fixedly connected.
Furthermore, the base plate is provided with screw holes corresponding to the inner and outer screw cylinder pieces.
Further, the length and width of the plate body are both 200-800mm, and the height of the plate body is 15-25 mm.
A preparation method of a novel bearing leveling plate comprises the following steps:
1) firstly, preparing sulphoaluminate cement, tailing sand, stone rice with the thickness of 3-5mm, a water reducing agent, a retarder, cement fibers and water, and fully and uniformly stirring to form cement mortar;
2) selecting a die box, and selecting five positions in the die box to fix the inner and outer screw cylinder pieces;
3) preparing a plurality of pieces of alkali-resistant glass fiber mesh cloth which has the same length and width as the specifications in the die box and is perforated at the same positions as the five inner and outer silk cylinder pieces;
4) pouring the uniformly stirred cement mortar into a die box, moving the die box forwards on a production line and vibrating, simultaneously placing a plurality of layers of glass fiber gridding cloth to bury the glass fiber gridding cloth at a position 3-5mm below the mortar when the vibration is finished, vibrating the die box in the conveying process of a vibration conveyor belt to flatten the surface of the mortar, transferring the die box into a horizontal placing frame for standing, and keeping the temperature at 10-35 ℃ and the humidity at not lower than 50 ℃ in a forming environment;
5) taking down the die box, placing the bottom surface of the die box upwards and leveling, manually tapping the side surface of the die box to demould the bearing leveling plate, and intensively storing the bearing leveling plate in an environment with the temperature of 10-35 ℃ and the humidity of not lower than 50 ℃.
A method for paving a novel bearing leveling plate includes laying a heat insulation pad on a main floor slab, fixing ground heating pipes on the heat insulation pad, arranging backward from a wall according to indoor conditions, setting horizontal lines, arranging a plastic thin plate with the same specification as the bearing leveling plate from an indoor side, arranging backward from an indoor side sequentially corresponding to five holes on the bearing leveling plate, drilling grooves in the main floor slab through the plastic thin plate at corresponding positions of the five holes, embedding wood plugs or plastic plugs in the middle hole grooves, arranging the whole floor, drilling holes, penetrating the heat insulation pad, screwing five adjusting bolts of the bearing leveling plate into the lower side of the bearing leveling plate, laying the bearing leveling plate according to the positions of the drilled holes of the floor slab, adjusting the five adjusting bolts to enable the upper surface of the bearing leveling plate to be flush with the set horizontal lines, leveling and fixing the bearing leveling plate, and (3) leveling the top surfaces of the five adjusting bolts on the surfaces by using glue, plugging and leveling gaps around the plate surface by using foam glue, finishing the installation of the floor heating pipe bearing leveling plate, and paving the decorative floor after the paving is finished.
Compared with the prior art, the invention has the beneficial effects that: the novel bearing leveling plate has the characteristics of reasonable design and simple operation, and the novel bearing leveling plate is adopted for construction, so that the pollution of cement mortar and cement dust is avoided, the on-site environmental protection standard is improved, the construction period is shortened, the floor heating pavement and the ground decoration are constructed twice and are combined into one construction process, the plate body is used for replacing the cement mortar and damp-dry ash used for construction twice, the thickness is reduced, the cement sand material is reduced, the cost is reduced, the weight is reduced, the indoor effective height space is improved, the heat can be more quickly conducted and uniform, and an indoor circuit can stably pass through the lower surface of the bearing leveling plate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a perspective view of the device of the present invention;
FIG. 2 is a front view of the device of FIG. 1;
fig. 3 is a bottom view of the device of fig. 1.
In the figure: 1. a plate body; 11. a substrate; 111. a screw hole; 12. a flat sheet layer; 13. an enhancement layer; 2. inner and outer threaded tubular members; 3. and adjusting the bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, 2 and 3, the novel bearing leveling plate comprises a plate body 1, inner and outer cylinder members 2 and an adjusting bolt 3, wherein the plate body 1 comprises a base plate 11 and a flat plate layer 12, the base plate 11 is arranged at the lower end of the flat plate layer 12, the base plate 11 and the flat plate layer 12 are integrally formed, the inner and outer cylinder members 2 are arranged in the middle of the plate body 1, the inner and outer cylinder members 2 are vertically and fixedly connected with the plate body 1, the adjusting bolt 3 is arranged inside the inner and outer cylinder members 2, and the adjusting bolt 3 is movably connected with the inner and outer cylinder members 2.
The current paving method of the floor heating is to pave a heat insulation pad with the thickness of 10-20 mm on a main floor slab, then fix and pave the floor heating pipe according to requirements, and then cast cement mortar above the heat insulation pad for leveling and solidification for 3 days, wherein the thickness of the cement mortar reaches about 60 mm; then, the ground is decorated, cement and sand are prepared, and the wet and dry ash is mixed to level the ground, and the thickness of the ground reaches 30-50 mm. Then paving porcelain plates or stone materials, wood plates and the like. The construction mode belongs to wet construction, the whole thickness of the floor can reach 80-130 mm, so that the indoor effective height space is reduced, and the development trend of domestic assembly type buildings is not met; in addition, indoor ground or wall base needs to be leveled, cement mortar leveling, wood base leveling, light steel keel leveling and the like are generally adopted, and in the leveling methods, the leveling cannot be performed quickly, the height cannot be adjusted, or the space is wasted, the operation is complex, and the practical application is difficult.
The bearing leveling plate provided by the invention is a structure prefabricated and molded before decoration, the plate body 1 can be formed by adopting cement mortar in advance through casting or other materials suitable for ground laying, a plurality of inner and outer cylinder parts 2 are vertically arranged on the upper surface of the plate body 1 from top to bottom, the adjusting bolt 3 penetrates through the inner and outer cylinder parts 2 to be connected with the ground, and the height of the adjusting bolt 3 is adjusted, so that the bearing leveling plate can be conveniently leveled, and the floor laying efficiency is improved; the bearing leveling plate is laid after the floor heating pipe is installed on the main floor slab, and is prefabricated and molded, so that wet construction is avoided, and pollution of cement mortar and cement dust is avoided; the dry construction method effectively reduces the labor intensity of constructors, improves the construction efficiency, shortens the construction period and reduces the labor cost.
As a specific embodiment of the novel load-bearing leveling plate of the present invention, a reinforcing layer 13 is further disposed between the substrate 11 and the flat plate layer 12, and the reinforcing layer 13 is fixedly connected to both the substrate 11 and the flat plate layer 12, preferably, the reinforcing layer 13 is composed of a plurality of layers of glass fiber mesh fabrics, the glass fiber mesh fabrics are stacked on each other, and the glass fiber mesh fabrics are fixedly connected to each other; further, 1-2 layers of steel wire mesh sheets can be laid on the reinforcing layer 13 as required to improve the bending resistance of the plate body and increase the bearing capacity.
As a specific embodiment of the novel bearing leveling plate, the plate body 1 is square, 5 inner and outer cylindrical silk pieces 2 are arranged on the plate body 1, the 5 inner and outer cylindrical silk pieces 2 are respectively distributed at the central position and the positions close to four corners of the plate body 1, and the 4 inner and outer cylindrical silk pieces 2 close to the four corners are mutually symmetrical; the height of 5 internal and external silk barrel pieces 2 is greater than the thickness 2mm of the plate body 1, the internal diameter of the internal and external silk barrel pieces 2 can be selected between 8-16mm, meanwhile, the length of the internal and external silk barrel pieces close to four corners, which are provided with the adjusting bolts 3 with the same diameter, is 25-100mm, so as to adjust the flatness of the plate surface, the middle internal and external silk barrel pieces are provided with the adjusting bolts 3 which can be fastened with the ground, preferably, the size of the plate body 1 is 550mm multiplied by 550mm, the distances from the two sides of the close corner to the 4 internal and external silk barrel pieces 2 at the positions close to the four corners are 75mm respectively, when the bearing leveling plate with the design is used for floor laying, the phenomenon of gap overlapping with the specifications of decorative floors such as the existing ceramic tiles or wood floors can not occur, the stability of floor laying can be improved, the bearing capacity can.
As a specific embodiment of the novel bearing leveling plate, the base plate 11 is provided with the screw holes 111 corresponding to the inner and outer screw cylinder pieces 2, the adjusting bolts 3 penetrate through the inner and outer screw cylinder pieces 2 to be connected with the ground, and the height of the top of each adjusting bolt 3 is adjusted, so that quick leveling can be realized, and the floor paving efficiency is improved.
As a specific implementation mode of the novel bearing leveling plate, the length and width range of the plate body 1 is 200-800mm, the height range of the plate body 1 is 15-25mm, and after the bearing leveling plate is paved, the height of the upper surface of the bearing leveling plate from the ground is 60-65mm, so that the total thickness is obviously reduced compared with the existing wet construction, and the indoor effective height space is obviously increased.
As a specific implementation mode of the novel bearing leveling plate, the bearing leveling plate is a high-bending-resistance and high-strength cement composite plate formed by one-time casting, the upward surface of the bearing leveling plate can be made into curved surface stripes with the depth of 1-3mm so as to increase the firm connection between a porcelain plate and the surface, the bearing leveling plate can also be made into a flat plate so as to better pave a wood floor, and a proper amount of ceramsite can be added during the preparation of the bearing leveling plate so as to reduce the weight of the plate.
The invention relates to a preparation method of a novel bearing leveling plate, which comprises the following specific implementation modes: firstly, preparing one part of sulphoaluminate cement, one part of tailing sand, one part of stone rice with the length of 3-5mm, one part of water reducing agent, one part of retarder, one part of cement fiber and one part of water, fully and uniformly stirring to form cement mortar, selecting a mould box with the length of 200 plus materials, the width of 200 plus materials and the inner height of 25-100mm, selecting five positions in the mould box, fixing an inner and outer silk tube piece 2, preparing a plurality of alkali-resistant glass fiber mesh cloth pieces with the same length and width as the specification in the mould box and with the same positions as the five tube pieces and with holes, then pouring the uniformly stirred cement mortar into the mould box, moving the mould box forwards on a production line and vibrating, simultaneously placing 1-3 layers of glass fiber mesh cloth to enable the glass fiber mesh cloth pieces to be buried under the mortar with the depth of 3-5mm when the vibration is finished, vibrating the mould box for 30 seconds in the conveying of a vibration conveyor belt to enable the surface of the mortar to be smooth, keeping the temperature at 10-35 ℃ and the humidity at not lower than 50 ℃, then taking down the die box, placing the bottom surface of the die box upwards, manually tapping the bearing leveling plate on the side surface of the die box to demould, and intensively storing the storage environment keeping the temperature at 10-35 ℃ and the humidity at not lower than 50 ℃, wherein the parameters of the prepared plate body can ensure the safety in use according to the following requirements, the flatness of the upward surface of the plate surface is less than 2mm, the length, the width and the diagonal difference is +/-2 mm, the bending strength of the plate is more than or equal to 12MPa, the compressive strength is more than C40MPa, and the upward pulling force of the five inner and outer screw cylinder parts 2 is not.
The invention relates to a concrete implementation mode of a paving method of a novel bearing leveling plate, a heat-insulating pad with the thickness of 20mm is paved on a main body floor slab 11, a ground heating pipe is fixed on the heat-insulating pad, the heat-insulating pad is sequentially arranged backwards from one wall edge according to indoor conditions, a horizontal line is arranged, a plastic thin plate with the same specification as the bearing leveling plate is sequentially arranged backwards from one side determined indoors, meanwhile, a drill bit with the diameter larger than the flat bottom diameter of an adjusting bolt is arranged by electric hand drilling, a groove is drilled on the main body floor slab through the plastic thin plate at the corresponding position of the five holes, wherein, the groove at the four corners can be drilled for no more than 5mm, the middle groove is not less than 10mm deep, a wood plug or a plastic plug is embedded in the middle groove, thus the whole ground is completely arranged, after the hole is drilled, the hole groove needs to pass through the heat-insulating pad, the five adjusting bolts of the bearing leveling plate are screwed into the lower side of, the method comprises the following steps of (1) flattening a bearing leveling plate according to a punched floor hole position, adjusting five adjusting bolts to enable the upper surface of the bearing leveling plate to be flush with a set horizontal line, adding a small amount of white glue on a screw rod when the adjusting bolts are screwed from top to bottom so as to enable the adjusting bolts to be fixed without loosening, leveling and fixing the bearing leveling plate, leveling the top surfaces of the five adjusting bolts by using glue, plugging and leveling the gaps around the plate surface by using foaming glue, after the floor heating pipe and the bearing leveling plate are installed, spraying the foaming glue uniformly on the panel after the pavement is finished, and paving a ceramic tile; if the decorative wood floor is used, the 3mm foam pad is paved after paving, and the wood floor is paved.
The device obtained by the design can basically meet the use requirement of a novel bearing leveling plate, but the designer further improves the device according to the aim of further improving the function of the device.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a novel bearing screed-plate, includes plate body (1), inside and outside silk barrel spare (2) and adjusting bolt (3), its characterized in that: the plate body (1) comprises a base plate (11) and a flat plate layer (12), the base plate (11) is arranged at the lower end of the flat plate layer (12), the base plate (11) and the flat plate layer (12) are integrally formed, the inner and outer silk tube pieces (2) are arranged in the middle of the plate body (1), the inner and outer silk tube pieces (2) are fixedly connected with the plate body (1) in a vertical mode, and the adjusting bolt (3) is installed inside the inner and outer silk tube pieces (2).
2. The novel load-bearing leveling plate according to claim 1, wherein a reinforcing layer (13) is further arranged between the base plate (11) and the flat plate layer (12), and the reinforcing layer (13) is fixedly connected with both the base plate (11) and the flat plate layer (12).
3. The novel load-bearing leveling board according to claim 2, wherein the reinforcing layer (13) is formed by a plurality of layers of glass fiber mesh fabrics, the glass fiber mesh fabrics are stacked with each other, and the glass fiber mesh fabrics are fixedly connected with each other.
4. A novel load-bearing leveling plate according to claim 5, wherein the base plate (11) is provided with screw holes (111) corresponding to the inner and outer cylinder members (2).
5. A novel load-bearing leveling board according to claim 7, wherein the length and width of the board body (1) are both 200 mm and 800mm, and the height of the board body (1) is 15-25 mm.
6. The method for preparing a novel load-bearing leveling board according to any one of claims 1 to 5, comprising the following steps:
1) firstly, preparing sulphoaluminate cement, tailing sand, stone rice with the thickness of 3-5mm, a water reducing agent, a retarder, cement fibers and water, and fully and uniformly stirring to form cement mortar;
2) selecting a die box, and selecting five positions in the die box to fix the inner and outer screw cylinder pieces;
3) preparing a plurality of pieces of alkali-resistant glass fiber mesh cloth which has the same length and width as the specifications in the die box and is perforated at the same positions as the five inner and outer silk cylinder pieces;
4) pouring the uniformly stirred cement mortar into a die box, moving the die box forwards on a production line and vibrating, simultaneously placing a plurality of layers of glass fiber gridding cloth to bury the glass fiber gridding cloth at a position 3-5mm below the mortar when the vibration is finished, vibrating the die box in the conveying process of a vibration conveyor belt to flatten the surface of the mortar, transferring the die box into a horizontal placing frame for standing, and keeping the temperature at 10-35 ℃ and the humidity at not lower than 50 ℃ in a forming environment;
5) taking down the die box, placing the bottom surface of the die box upwards and leveling, manually tapping the side surface of the die box to demould the bearing leveling plate, and intensively storing the bearing leveling plate in a storage environment with the temperature of 10-35 ℃ and the humidity of not lower than 50 ℃.
7. A method for paving a novel load-bearing leveling board according to any one of claims 1 to 5, wherein the thermal insulation mat is laid on the main floor, the floor heating pipes are fixed on the thermal insulation mat, the floor heating pipes are arranged backwards from one wall side in sequence according to indoor conditions, the horizontal line is set, a plastic thin board with the same specification as the load-bearing leveling board is arranged backwards from the indoor side in sequence, the holes on the load-bearing leveling board correspond to the five holes, the holes are drilled into the main floor through the plastic thin board at the corresponding positions of the five holes, a wood plug or a plastic plug is embedded into the middle hole, the whole floor is arranged in a whole manner, the holes need to pass through the thermal insulation mat after the holes are drilled, the five adjusting bolts of the load-bearing leveling board are screwed into the lower side of the load-bearing leveling board, the load-bearing leveling board is laid according to the positions of the holes on the drilled floor, the five adjusting bolts are adjusted to make the upper, after the load-bearing leveling plate is leveled and fixed, the top surfaces of the five adjusting bolts are smoothed by glue, gaps around the plate surface are blocked and smoothed by foam glue, the floor heating pipe and the load-bearing leveling plate are installed, and after the pavement is finished, the decorative floor is paved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660386.4A CN111677231A (en) | 2020-07-10 | 2020-07-10 | Novel load-bearing leveling plate and preparation method and paving method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010660386.4A CN111677231A (en) | 2020-07-10 | 2020-07-10 | Novel load-bearing leveling plate and preparation method and paving method thereof |
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| CN111677231A true CN111677231A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010660386.4A Pending CN111677231A (en) | 2020-07-10 | 2020-07-10 | Novel load-bearing leveling plate and preparation method and paving method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482458A (en) * | 2022-02-11 | 2022-05-13 | 广东邦英新材料有限公司 | Novel co-extrusion wood-plastic floor and installation method thereof |
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2020
- 2020-07-10 CN CN202010660386.4A patent/CN111677231A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482458A (en) * | 2022-02-11 | 2022-05-13 | 广东邦英新材料有限公司 | Novel co-extrusion wood-plastic floor and installation method thereof |
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