CN113738082A - Epoxy terrazzo wet-paving process - Google Patents
Epoxy terrazzo wet-paving process Download PDFInfo
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- CN113738082A CN113738082A CN202111142291.4A CN202111142291A CN113738082A CN 113738082 A CN113738082 A CN 113738082A CN 202111142291 A CN202111142291 A CN 202111142291A CN 113738082 A CN113738082 A CN 113738082A
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- 238000000227 grinding Methods 0.000 claims abstract description 59
- 238000005336 cracking Methods 0.000 claims abstract description 34
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- 239000000463 material Substances 0.000 claims abstract description 21
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- 239000004568 cement Substances 0.000 claims abstract description 15
- 238000003892 spreading Methods 0.000 claims abstract description 14
- 238000002425 crystallisation Methods 0.000 claims abstract description 12
- 230000008025 crystallization Effects 0.000 claims abstract description 12
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- 238000010276 construction Methods 0.000 claims description 24
- 239000003365 glass fiber Substances 0.000 claims description 22
- 239000003822 epoxy resin Substances 0.000 claims description 15
- 229920000647 polyepoxide Polymers 0.000 claims description 15
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/20—Implements for finishing work on buildings for laying flooring
- E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/126—Terrazzo floors
Abstract
The invention relates to the technical field of terrazzo paving processes, in particular to an epoxy terrazzo wet paving process, which comprises the following steps: cleaning the surface of a base layer, wherein the compressive strength is more than 25MPa, paving a PE film or cement paste on the base layer, leveling and maintaining the PE film or cement paste by leveling mortar, and paving a bottom coating after maintenance is finished; spreading an elastic resin layer on the base coat layer in a coating amount of 1.5kg/m2～2kg/m2Spreading a rigid anti-cracking inhibition layer above the elastic resin layer; uniformly mixing 3-5 parts of aggregate and 0.5-1.5 parts of resin according to the weight ratio, spreading the uniformly stirred aggregate on a rigid anti-cracking inhibition layer, compacting and polishing the surface of the spread material, and waiting for curing; sequentially carrying out coarse grinding and middle grindingGrinding, sealing with resin, fine grinding, and finally performing crystallization polishing. The grindstone ground prepared by the process has the advantages of good crack resistance, high supporting strength, more bright appearance, better abrasion resistance and better corrosion resistance.
Description
Technical Field
The invention relates to the technical field of terrazzo paving processes, in particular to an epoxy terrazzo wet paving process.
Background
Epoxy terrazzo is a seamless decorative floor incorporating recycled transparent glass or granite, flint or other aggregate. The front body of the epoxy terrazzo terrace can trace back to the terrazzo ground in the ancient Roman times, and the epoxy terrazzo terrace has shocky appearance, and the wear-resistant and flexible quality is favored and inherited by the first modern empire nation established by prospective architects. In modern fast-paced lifestyles, epoxy terrazzo terraces present impressive ground effects and become the first choice of global designers. Present factory building, parking area all need the terrace, and the terrace of different performance is required to different occasions. The traditional terrazzo has poor performance after paving, so that the service life is short.
Disclosure of Invention
The invention aims to solve the defect that the service life is short due to poor performance of the epoxy terrazzo after the terrazzo is paved in the prior art, and provides a wet paving process of the epoxy terrazzo.
In order to achieve the purpose, the invention adopts the following technical scheme:
an epoxy terrazzo wet-paving process comprises the following steps:
the method comprises the following steps: cleaning the surface of a base layer, wherein the compressive strength is more than 25MPa, paving a PE film or cement paste on the base layer, leveling and maintaining the PE film or cement paste by leveling mortar, and paving a bottom coating after maintenance is finished;
step two: spreading an elastic resin layer on the base coat layer in a coating amount of 1.5kg/m2～2kg/m2Spreading a rigid anti-cracking inhibition layer above the elastic resin layer;
step three: uniformly mixing 3-5 parts of aggregate and 0.5-1.5 parts of resin according to the weight ratio, spreading the uniformly stirred aggregate on a rigid anti-cracking inhibition layer, compacting and polishing the surface of the spread material, and waiting for curing;
step four: and (4) performing coarse grinding, middle grinding, resin hole sealing and fine grinding in sequence, and finally performing crystallization polishing.
In the first step, a film is fully paved on the finished leveling mortar layer for curing for 4-7 days, wherein the curing is required for 5-7 days in winter, and the next procedure can be met after the film is uncovered and air dried for three days when the compressive strength reaches 12 MPa; or spraying sealing curing agent on the leveling mortar layer for curing for 4-7 days.
In the second step, the rigid anti-cracking inhibition layer is a composite layer formed by combining an anti-cracking glass fiber layer and epoxy resin.
Construction of the rigid anti-cracking restraining layerThe method comprises the following steps: firstly, cutting glass fiber cloth, then laying the cut glass fiber cloth on an elastic resin layer, and fully laying the glass fiber cloth to ensure that no gap exists between every two pieces of glass fiber cloth; secondly, coating and scraping the epoxy resin on the glass fiber cloth to ensure that the glass fiber is fully soaked with the epoxy resin, wherein the dosage of the epoxy resin is 0.8kg/m2～1.5kg/m2And forming the resin and the fiber into a package.
Coarse grinding in the fourth step: a60 # to 90# coarse diamond grinding disc is used, so that the head of the grinding machine walks transversely in an 8 shape on the ground, and water is added while grinding.
Grinding in the fourth step: adding a proper amount of water into a water tank by using a grinder, discharging a small amount of water during grinding, and then showing a primary effect of a grinding stone after grinding, wherein 50-mesh, 150-mesh and 300-mesh resin grinding sheets are selected for grinding in sequence; cleaning the ground, airing, and then carrying out sand rolling and sealing holes, wherein the sand rolling and sealing holes are made of resin added fine sand on the surface layer, and are polished to be smooth by a 90# to 120# diamond millstone or 3# resin water abrasive sheets, 4# resin water abrasive sheets and 5# resin water abrasive sheets;
and step four, resin hole sealing: and (3) performing slurry supplement after closed maintenance, wherein the slurry supplement conditions are as follows: the principle of batch scraping operation by people is taken;
fine grinding in the fourth step: the grinding traces on the ground are sequentially ground and flattened by using 300#, 500#, 800#, 1500# and 3000# resin hard grinding materials and resin water grinding sheets for a large intelligent grinder according to a 'well' method, the resin materials are required to be completely ground, and the aggregate is uniformly exposed.
And step four, crystallizing and polishing: and (4) carrying out crystallization grinding on the ground by using a crystallization polisher matched with a hair mat and matching with a crystallization material.
The epoxy terrazzo wet-paving process provided by the invention has the beneficial effects that: the grindstone ground prepared by the process has the advantages of good crack resistance, high supporting strength, more bright appearance, better abrasion resistance and better corrosion resistance.
Detailed Description
The technical solutions in the following embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The first embodiment is as follows:
an epoxy terrazzo wet-paving process comprises the following steps:
the method comprises the following steps: the surface of a base layer is cleaned, the compressive strength is larger than 25MPa, a PE film or cement paste is paved on the base layer, then leveling and maintenance are carried out on the PE film or the cement paste through leveling mortar, a bottom coating is paved after maintenance is finished, the PE film is paved, the cracking risk caused by stress release in the later leveling period of the base layer is effectively reduced, and the cracking risk of the base layer is caused under the condition that a new ground structure is unstable, so that the leveling mortar is not bonded with the base layer, a suspension system is formed, if the base layer is cracked, the leveling layer is not cracked, the cracking is prevented, the cement paste can bond the leveling layer and the base together, and the strength of the leveling layer is increased;
step two: spreading an elastic resin layer on the base coat layer in a coating amount of 1.5kg/m2～2kg/m2The elastic resin layer is a flexible polyurethane modified epoxy resin material, a rigid anti-cracking inhibition layer is paved above the elastic resin layer, an elastic anti-cracking inhibition layer is paved preferentially, so that the lower layer of the anti-cracking inhibition film and the upper layer of the anti-cracking inhibition film are relatively independent in mechanical property to form a bridge type suspension structure, the upper layer of the structure is protected by breaking the anti-cracking inhibition film through the foundation cracking of the lower layer, the suspension structure is manufactured, then the rigid anti-cracking inhibition layer is paved above the elastic resin layer to serve as a firm foundation of a main paving layer of the grinding stone, and the upper paving layer is paved with a great reinforcing effect;
step three: uniformly mixing 3-5 parts of aggregate and 0.5-1.5 parts of resin according to the weight ratio, spreading the uniformly stirred aggregate on a rigid anti-cracking inhibition layer, compacting the surface of the spread material, smoothing, waiting for curing, and preferably selecting the aggregate: the resin is mixed and stirred uniformly according to the ratio of 4:1, the resin in the formula is more, the paved aggregate has better fluidity, the gaps are less, the brightness is better, and the ground bright surface is better;
step four: the terrazzo prepared by the process is mainly applied to various commercial experience centers, hotels, exhibition halls, libraries and other commercial complexes.
Example two:
1. construction of foundation system
1.1 base layer treatment
If the surface of the base layer is uneven, the material used in the subsequent leveling process is different in size, different in thickness and different in strength.
The intensity of basic unit, intensity is not enough can make the basic unit atress destroy, influences the fracture risk of upper terrazzo. Generally, the compressive strength is required to be more than 25 MPa.
The attachment of the base layer cleans up the sundries on the concrete base layer without oil stains and floating soil.
And (3) carrying out on-site investigation to determine whether sand is generated, hollowing, cracking, water seepage and moisture regain exist, and treating the defects of the base layer in time.
1.2 quick-strength leveling mortar layer
The elevation is found and the horizontal line is marked, so that the thickness of each layer in the construction process of the terrazzo is the reference horizontal line of the levelness of each layer.
Lay the PE membrane and make level the fracture risk that later stage stress release caused for effectual reduction basic unit to and the basic unit fracture risk that causes under the unstable condition of new ground structure, reduce the thickness of PE membrane and use satisfying the construction requirement as the main, have the hole at PE membrane upstream a bit, the air current is penetrating about being convenient for. The standard lap joint of the release film is preferably 10cm, and the paving is determined to be smooth.
The construction of the rapid leveling mortar layer aims at leveling the construction surface. Firstly, the concrete of the leveling layer has high sand content and low water-cement ratio, and the admixture improves the cracking property of the concrete and then increases the strength of the ground.
a) According to the horizontal line popped up on the wall, the reserved elevation must accurately reserve the thickness of a surface layer (about 10-15 mm thick), in order to ensure the flatness of the leveling layer, firstly plastering cakes (the distance between the longitudinal direction and the transverse direction is about 1.5 m), and leveling mortar with the width of about 8-lOcm is semi-dry mortar mixed by yellow sand, cement and an additive and is used for leveling the ground. Wherein the cement and the yellow sand additive are strictly added according to the proportion and are uniformly stirred. And (4) controlling the water consumption to enable the mixed mortar to be in a semi-dry state. The feeding mode and the stirring speed were controlled so as not to cause the mixture to agglomerate. The thickness of the leveling layer is usually 50mm, the used leveling mortar is 90 kg/square meter to 120 kg/square meter, and the used cement is 16 kg/square meter to 25 kg/square meter. The admixture is 0.5 per square meter to 2kg per square meter.
b) Spreading leveling mortar on a base layer paved with a film, using a level meter to search for and control elevation, using a scraping ruler to primarily scrape, and using a troweling machine to fully compact to enable the flatness to reach a 3mm clearance gauge with a 3m guiding ruler. After the mortar of the ash cake is hardened, the height of the ash cake is taken as a standard, and vertical and horizontal marking ribs with the width of 8-10cm are smeared, so that the leveling effect is achieved, the cracking is prevented, and the strength is improved.
c) If the base layer is not coated with a film, the base layer is sprayed with water to be wet, and a cement paste with a water-cement ratio of 0.4-0.5 is brushed, wherein acrylic emulsion can be contained. The area is not too large, the leveling layer mortar is paved along with brushing the mortar, a scraping ruler is used for primarily scraping the mortar, and a troweling machine is used for fully compacting the mortar to ensure that the flatness reaches 3m guiding rule and 3mm clearance gauge.
Maintenance of foundation
And (3) fully spreading a film on the finished leveling mortar layer for curing for four days, and spraying a sealing curing agent on the leveling mortar layer for curing. And maintaining for 5-7 days in winter, and after the compressive strength reaches 12MPa, uncovering the film and air-drying for three days, so that the next procedure can be met.
Foundation leveling treatment: and the leveling instrument is combined, the guiding rule is used for measuring the flatness, the high point is leveled by a grinding machine, and the low point is leveled by high-power mortar.
1.3 basic sealing layer (first coat construction)
The material used for constructing the foundation seal coat is a primer coat, and generally adopts a material combining epoxy resin and polyamide modified curing agent, the dosage is 0.2kg/m2-0.4kg/m2, and the dosage is different according to the number of ground pores.
Before construction, dust on the ground is absorbed and cleaned, and the bottom coat is uniformly scraped or coated on the foundation ground by a roller or a knife board, so that the adhesive force is increased.
The resin permeates into the concrete foundation and has a reinforcing effect on the foundation, so that the resin and the ground achieve a chemical anchoring effect. And (4) paying attention to the consistency of the resin mixed powder in the construction process to be suitable for the corresponding ground, carrying out subsequent construction after the resin mixed powder is completely cured, and paying attention to the temperature and humidity of the ground. The bottom coating construction needs to be uniform, and the resin roll coating of the contact layer cannot have dead angles and is omitted.
2. Middle layer anti-cracking system construction
2.1 elastic crack-resistant inhibiting layer
The material used for the elastic anti-cracking inhibition layer is a high molecular polymer which is made of elastic resin, can exist relatively stably and is easy to tear under external force, the high molecular polymer is called elastic resin herein, the elastic resin is used for blade coating on the bottom coat, and the blade coating amount is usually 1.5kg/m 2-2 kg/m 2.
The anti-cracking restraining film has the effects that the lower layer and the upper layer of the anti-cracking restraining film are relatively independent in mechanical property to form a bridge type suspension structure, the upper layer of the structure is protected by breaking the anti-cracking restraining film due to foundation cracking of the lower layer, and the suspension structure is manufactured.
In the construction process of the anti-cracking inhibiting film, a scraper or a scraper plate is used for more construction, the coating film is uniform in the construction process, the complete curing of the anti-cracking film is ensured after the construction is finished, and the proportion of the materials meets the requirements.
2.2 rigid crack-resistant inhibiting layer
The rigid anti-cracking inhibiting layer is a combination of an anti-cracking glass fiber layer and epoxy resin, and can enable the glass fiber layer and the epoxy resin to form a high-strength glass fiber reinforced plastic layer which is used as a firm foundation of a main paving layer of the grinding stone and has a great reinforcing effect on an upper paving layer.
The construction of the anti-crack fiber layer generally comprises two steps: firstly, selecting high-quality and suitable glass fiber cloth, cutting the glass fiber cloth according to certain requirements, and then laying the cut glass fiber cloth on the anti-cracking inhibition film. Fully paving to ensure that no gap exists between every two glass fiber nets; secondly, coating and scraping the epoxy resin to fully soak the glass fiber with the epoxy resin, wherein the dosage of the epoxy resin is generally 0.8kg/m 2-1.5 kg/m2, and the resin and the fiber are fully wrapped.
The penetration of resin and glass fiber is noticed in the construction process, bubbles are reduced, the solidification is complete, and the fiber cloth ensures the lap joint standard and is flat and bubble-free.
2.3 installation of the model closing-in separation strip
Paying off the ground according to a design drawing, installing the separating strips (adjusting flatness by infrared rays, fixing the separating strips by using a quick-curing adhesive, and avoiding deformation in the subsequent spreading process), and requiring strict silk joint at the interface without dislocation displacement.
3. Paving surface system construction
3.1 epoxy millstone paving surface layer
3.1.1 construction of the bed of stone aggregate
And (3) according to the requirements of the constructed area, mixing the aggregate: the surface layer resin is mixed and evenly stirred according to the proportion of 4:1, the evenly stirred aggregate is paved on the ground, infrared rays are adopted to measure horizontal points in each small paved area, meanwhile, a trowel is used for compacting and smoothing the surface of the paved material, the actual proportion of the aggregate and the resin can be adjusted according to the actual conditions of construction site temperature, size of the aggregate, grading mode and the like, and the paving thickness is generally about 12 mm. Curing time is 48h in summer and 72h in winter, and leveling process is carried out, flatness is noticed, and no leakage bottom condition exists in the aggregate.
3.1.2 Rough grinding leveling
A60 # to 90# coarse diamond grinding disc is used to lead the head of the grinding machine to move horizontally in a shape like 8 on the ground, water is added while grinding the edge (if the strength of the grinding stone surface layer is too high, fine sand can be added to accelerate the grinding speed of the machine),
3.1.3 Water mill (Medium mill)
A proper amount of water is added into a water tank by a 12-head grinder, a small amount of water is discharged during grinding, a primary effect of a grinding stone can be seen after grinding, and 50-mesh, 150-mesh and 300-mesh resin grinding sheets are selected for grinding in sequence.
When the floor is cleaned, the floor must be cleaned to prevent the effect of the grindstone from being affected by dirt with different colors. After drying, carrying out sand rubbing and hole sealing, wherein the used materials are surface resin and fine sand. The face washing and hole sealing can be carried out only by completely curing the former procedure before resin construction.
Grinding with 90# -120 # diamond grinding disc or (3#, 4#, 5#) resin water until the surface is smooth,
3.1.4 resin sealing
The slurry supplementing condition and time are that slurry can be supplemented after closed maintenance for 8 hours, and the principle that batch scraping can be carried out by people generally can be determined according to the curing condition.
3.1.5 Fine grinding of the open faces
The grinding traces on the ground are sequentially ground and flattened by using 300#, 500#, 800#, 1500# and 3000# resin hard grinding materials and resin water grinding sheets for a large intelligent grinder according to a 'well' method, the resin materials are required to be completely ground, and the aggregate is uniformly exposed.
The aggregates cannot be reground after exposure, otherwise holes would be ground. The aggregate is required to be uniformly exposed, have no color spots and have uniform color. The holes can not be ground after fine grinding, and the knife marks and the terrace particles are ground.
3.2 epoxy grindstone protective surface layer
3.2.1 overlay System construction
And (3) crystallizing and polishing: and (4) carrying out crystallization grinding on the ground by using a crystallization polisher matched with a hair mat and matching with a crystallization material. It can improve the brightness of the surface and the hardness of the surface, so that the terrazzo has lasting wear-resisting and anti-skid effects.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. An epoxy terrazzo wet-paving process is characterized by comprising the following steps:
the method comprises the following steps: cleaning the surface of a base layer, wherein the compressive strength is more than 25MPa, paving a PE film or cement paste on the base layer, leveling and maintaining the PE film or cement paste by leveling mortar, and paving a bottom coating after maintenance is finished;
step two: spreading an elastic resin layer on the base coat layer in a coating amount of 1.5kg/m2～2kg/m2Spreading a rigid anti-cracking inhibition layer above the elastic resin layer;
step three: uniformly mixing 3-5 parts of aggregate and 0.5-1.5 parts of resin according to the weight ratio, spreading the uniformly stirred aggregate on a rigid anti-cracking inhibition layer, compacting and polishing the surface of the spread material, and waiting for curing;
step four: and (4) performing coarse grinding, middle grinding, resin hole sealing and fine grinding in sequence, and finally performing crystallization polishing.
2. The epoxy terrazzo wet-paving process according to claim 1, characterized in that in the first step, a film is fully paved on the finished leveling mortar layer for curing for 4-7 days, wherein the curing is required for 5-7 days in winter, and the next procedure can be met after the film is uncovered and air-dried for three days when the compressive strength reaches 12 MPa; or spraying sealing curing agent on the leveling mortar layer for curing for 4-7 days.
3. The epoxy terrazzo wet-paving process as claimed in claim 1, wherein in step two, the rigid anti-crack inhibiting layer is a composite layer formed by combining an anti-crack glass fiber layer and epoxy resin.
4. The epoxy terrazzo wet-paving process as claimed in claim 3, wherein the construction of the rigid anti-crack inhibiting layer comprises the following steps: firstly, cutting glass fiber cloth, then laying the cut glass fiber cloth on an elastic resin layer, and fully laying the glass fiber cloth to ensure that no gap exists between every two pieces of glass fiber cloth; secondly, coating and scraping the epoxy resin on the glass fiber cloth to ensure that the glass fiber is fully soaked with the epoxy resin, wherein the dosage of the epoxy resin is 0.8kg/m2～1.5kg/m2And forming the resin and the fiber into a package.
5. The epoxy terrazzo wet-paving process as claimed in claim 1, characterized by coarse grinding in four steps: a60 # to 90# coarse diamond grinding disc is used, so that the head of the grinding machine walks transversely in an 8 shape on the ground, and water is added while grinding.
6. The epoxy terrazzo wet-paving process as claimed in claim 1, characterized by the following steps: adding a proper amount of water into a water tank by using a grinder, discharging a small amount of water during grinding, and then showing a primary effect of a grinding stone after grinding, wherein 50-mesh, 150-mesh and 300-mesh resin grinding sheets are selected for grinding in sequence; cleaning the ground, airing, and then carrying out sand rolling and sealing holes, wherein the sand rolling and sealing holes are made of resin added fine sand on the surface layer, and are polished to be smooth by a 90# to 120# diamond millstone or a 3# resin water abrasive sheet, a 4# resin water abrasive sheet and a 5# resin water abrasive sheet.
7. The epoxy terrazzo wet-paving process according to claim 1, characterized in that the resin sealing in the fourth step: and (3) performing slurry supplement after closed maintenance, wherein the slurry supplement conditions are as follows: the principle is that the batch scraping operation can be carried out by the people.
8. The epoxy terrazzo wet-paving process as claimed in claim 1, characterized by fine grinding in step four: the grinding traces on the ground are sequentially ground and flattened by using 300#, 500#, 800#, 1500# and 3000# resin hard grinding materials and resin water grinding sheets for a large intelligent grinder according to a 'well' method, the resin materials are required to be completely ground, and the aggregate is uniformly exposed.
9. The epoxy terrazzo wet-paving process as claimed in claim 1, characterized by the following steps: and (4) carrying out crystallization grinding on the ground by using a crystallization polisher matched with a hair mat and matching with a crystallization material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111142291.4A CN113738082A (en) | 2021-09-28 | 2021-09-28 | Epoxy terrazzo wet-paving process |
Applications Claiming Priority (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114658192A (en) * | 2022-04-29 | 2022-06-24 | 北京大古建筑技术发展有限公司 | Parquet floor material and preparation method thereof |
| CN114775978A (en) * | 2022-04-02 | 2022-07-22 | 宿州典跃新型建筑材料有限公司 | Ceramic tile composite grindstone pasting and paving process |
| CN115678387A (en) * | 2022-11-21 | 2023-02-03 | 树勋(上海)环保建材有限公司 | Anti-corrosion grindstone |
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| CN114775978A (en) * | 2022-04-02 | 2022-07-22 | 宿州典跃新型建筑材料有限公司 | Ceramic tile composite grindstone pasting and paving process |
| CN114658192A (en) * | 2022-04-29 | 2022-06-24 | 北京大古建筑技术发展有限公司 | Parquet floor material and preparation method thereof |
| CN115678387A (en) * | 2022-11-21 | 2023-02-03 | 树勋(上海)环保建材有限公司 | Anti-corrosion grindstone |
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Application publication date: 20211203 |