CN105887617B - It is a kind of to have both the hollow curbstone catchment, drain, seeping water and pour mold - Google Patents
It is a kind of to have both the hollow curbstone catchment, drain, seeping water and pour mold Download PDFInfo
- Publication number
- CN105887617B CN105887617B CN201610267052.4A CN201610267052A CN105887617B CN 105887617 B CN105887617 B CN 105887617B CN 201610267052 A CN201610267052 A CN 201610267052A CN 105887617 B CN105887617 B CN 105887617B
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- China
- Prior art keywords
- bellmouth
- plug
- sprue
- taper
- road surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/221—Kerbs or like edging members, e.g. flush kerbs, shoulder retaining means ; Joint members, connecting or load-transfer means specially for kerbs
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
-
- 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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
Abstract
The invention discloses a kind of curbs for collecting rainwater on road surface suitable for urban road and have both drainage pipeline function, and make the mold of the curb；It is characterized by: hollow curbstone shape is a hollow cuboid, along its length, having a cross section is the cavity of class round shape, the sprue as curb draining；It is arranged with several taper inlet openings on the left of sprue, is arranged with several taper water seepage holes on the right side of sprue；Bellmouth is connected to sprue, and the stub end of bellmouth is connected to the sprue of the cavity of class round shape.The mold includes the entirety that bottom plate, left and right side plate are formed, former and later two end plates, plug, and cover the elastic tape in plug periphery.The hollow curbstone can collect rainwater on road surface by several bellmouths, since the microcephaly of bellmouth communicates with road surface, big leaf class sundries is not easy to rush in pipeline, compared with the straight tube inlet opening of the identical bore of the microcephaly of bellmouth, the resistance to water-flow of bellmouth runner is again smaller, is also not easy to plug.
Description
Technical field
The present invention relates to concrete segment production of articles, are specifically to be related to one kind to be suitable for urban road collection road surface
Rainwater and the curb for having both drainage pipeline function, and make the mold of the curb.
Background technique
Curb is mainly used on town road, between car lane and pavement or greenbelt, along the vertical side of road
To one strip and block concrete of installation or natural stone building block, car lane and pavement or greenbelt are separated, become
The boundary stone of pavement edge, can also play the attractive, decorative to road at the effects of can both having played the role of water blocking, earth-retaining.It is existing
Curb, mainly solid concrete or solid block only have single isolation features.To exclude highway pavement ponding,
It also needs that drainpipe, ditch separately is arranged.This case that improving, also there are several Patent designs to go out hollow curb, such as
CN102767129A, hollow road edge stone, for another example CN1928241A, the curb with weep hole, the main advantage of these schemes
It is to merge the drainage pipeline in roadside with the function of existing curb, there is the function for collecting that surface gathered water and road separate
Energy.But the above design also has interface construction not convenient enough, water collecting inlet is easy to the shortcoming blocked.Existing road drainage
Another problem of system is that rainwater discharge approach is mainly that rainwater on road surface is collected to gutter, then the water in gutter is collected to branch
Gutter, main drain are drained to river or Sewage Disposal, but rainwater to the soil permeability below pavement or greenbelt very
It is few, it is unfavorable for the ecological balance.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, provide herein a kind of suitable for urban road collection road surface
Rainwater and the curb for having both drainage pipeline function, and make the mold of the curb.This kind of hollow curbstone can lead to
It crosses several bellmouths and collects rainwater on road surface, since the microcephaly of bellmouth communicates with road surface, big leaf class sundries is not easy to rush in pipe
Road, compared with the straight tube inlet opening of the identical bore of the microcephaly of bellmouth, the resistance to water-flow of bellmouth runner is again smaller, is also not easy to block up
Plug.The water seepage hole of bellmouth also has same advantage, the bellmouth being connected to the sandy soil layer under the road surface of pavement, and rainwater is readily permeable
Into sandy soil layer, and leaf class sundries is not easy to rush in pipeline.
The invention is realized in this way constructing a kind of hollow curbstone for having both and catchmenting, drain, seeping water, it is characterised in that:
The hollow curbstone shape is a hollow cuboid, and along its length, having a cross section is the elliptoid cavity of class, as
The sprue of curb draining；It is arranged with several taper inlet openings on the left of sprue, several tapers are arranged on the right side of sprue and are seeped
Water hole；Wherein, taper inlet opening and taper water seepage hole are connected to sprue, the stub end of taper inlet opening and taper water seepage hole
It is connected to the sprue of the elliptoid cavity of class, the small head end of taper inlet opening and taper water seepage hole and pavement of road or pavement
Sandy soil layer connection under road surface；Specifically:
The taper inlet opening being connected to pavement of road is as inlet opening, for collecting rainwater on road surface；
The taper water seepage hole being connected to the sandy soil layer under the road surface of pavement can penetrate into rainwater on road surface as water seepage hole
Enter the sandy soil layer under the road surface of pavement.When come water it is larger when, extra rainwater flows to urban drainage pipe network along sprue.
It is described according to the present invention to have both the hollow curbstone catchment, drain, seeping water, it is characterised in that: the two of curb
End, is respectively set rectangular recess bellmouth and rectangular boss socket, and when installing curb, rectangular boss socket is inserted into rectangular recess
Bellmouth.
A kind of hollow curbstone catchment, drain, seeping water that has both pours mold, it is characterised in that: the mold include bottom plate,
The entirety that left and right side plate is formed, former and later two end plates, plug, and cover the elastic tape in plug periphery；In two end plate planes
On, there are rectangular boss and rectangular recess respectively, assigns the corresponding rectangular recess bellmouth of casting concrete building block and rectangular boss is inserted
Mouthful；Cross section is the plug of the elliptoid metal of class or plastics and covers the elastic tape structure with several small cone bodies in plug periphery
At compound core pulling structure；The card slot of the plug of installation compound core pulling is disposed on former and later two end plates；Roundlet on elastic tape
The number and shape of cone are corresponding with the taper inlet opening of design, taper water seepage hole.
Hollow curbstone according to the present invention pours mold, it is characterised in that: bottom plate, side plate, the end plate of mold are equal
By thermoplastic injection molding, plug is made by metal or plastic hollow pipe, and elastic tape uses natural or synthetic rubber；Mold
Coating release agent is both needed to before use.
Hollow curbstone according to the present invention pours mold, it is characterised in that: the mold of this kind of compound core pulling structure
Application method is as follows:
The first step, for installation left and right side plate on bottom plate, rectangular recess bellmouth forms end plate, rectangular boss socket forming ends
Plate is mounted on bottom plate and left and right side plate, the van-type structure of one uncovered of shape, then plug is mounted on former and later two end plates, mould
Tool installation terminates；
Second step pours concrete mix in case and conserving to demoulding strength；
Third step extracts the plug of metal or plastics out, the remaining elastic tape with several small cone bodies；
4th step, due to foring the elliptoid cavity of class after plug extraction, then with tool by elastic tape to cavity center
It stirs, separates the elastic tape with several small cone bodies with concrete segment, extract the elastic tape with several small cone bodies out, obtain
For the elliptoid cavity of class as sprue, sprue left and right sides is arranged with the concrete curb of several round taper holes.
The present invention has the advantages that the present invention provides one kind suitable for urban road collection rainwater on road surface by improving herein
And the curb of drainage pipeline function is had both, and make the mold of the curb；If this kind of hollow curbstone can be by
Dry bellmouth collects rainwater on road surface, and since the microcephaly of bellmouth communicates with road surface, big leaf class sundries is not easy to rush in pipeline, with
The straight tube inlet opening of the identical bore of the microcephaly of bellmouth is compared, and the resistance to water-flow of bellmouth runner is again smaller, is also not easy to plug.Cone
The water seepage hole in shape hole also has same advantage, the bellmouth being connected to the sandy soil layer under the road surface of pavement, the readily permeable entrance of rainwater
Sandy soil layer, and leaf class sundries is not easy to rush in pipeline.In the curb, the bellmouth being connected to pavement of road is as water inlet
Hole, for collecting rainwater on road surface；The bellmouth being connected to the sandy soil layer under the road surface of pavement, can be by road surface rain as water seepage hole
Water penetration enters the sandy soil layer under the road surface of pavement；When come water it is larger when, extra rainwater flows to municipal drainage along sprue
Pipe network.
Detailed description of the invention
Fig. 1 be it is provided by the invention have both catchment, drain, the hollow curbstone schematic diagram of water seepage function
Fig. 2-3 is the sectional view of hollow curbstone
Fig. 4-5 is the mold assembling schematic diagram of hollow curbstone,
Fig. 6 is A-A cross-sectional view in Fig. 5
Fig. 7 is that mold integrally dismantles schematic diagram
Fig. 8 is that mold and curb pour schematic diagram
Fig. 9-11 is the mold releasability method schematic diagram of compound core pulling structure
In figure: 1, taper inlet opening；2, the elliptoid cavity of class；3, taper water seepage hole；4, rectangular boss socket；5, rectangle
Groove bellmouth；6, rectangular recess bellmouth forms end plate；7, rectangular boss socket forms end plate；8, bottom plate, left and right side plate are formed
It is whole；9, plug；10, elastic tape；11, small cone body；12, the concrete block conserved；13, the flat bent deformation of elastic tape.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in detail, and technical solution in the embodiment of the present invention carries out clear
Chu is fully described by, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
The present invention a kind of have both the hollow curbstone catchment, drain, seeping water and manufactures the curb by improving to provide herein
Stone pours mold.As shown, the hollow curbstone, shape is a hollow cuboid, along its length, is had one transversal
Face is the elliptoid cavity 2 of class, as the sprue of curb draining, is arranged with several taper inlet openings 1 on the left of sprue, main
Several taper water seepage holes 3 are arranged on the right side of runner, taper inlet opening 1 and taper water seepage hole 3 are connected to sprue, wherein taper
The stub end of inlet opening 1 and taper water seepage hole 3 is connected to the cavity of class ellipticity sprue, taper inlet opening 1 and taper infiltration
The small head end in hole 3 is connected to the sandy soil layer under pavement of road or pavement road surface.
As shown in Figure 2；The taper inlet opening 1 being connected to pavement of road is used as inlet opening, collects rainwater on road surface.With pavement
The taper water seepage hole 3 of sandy soil layer connection under road surface is used as water seepage hole, can penetrate into rainwater on road surface under the road surface of pavement
Sandy soil layer.When come water it is larger when, extra rainwater flows to urban drainage pipe network along sprue.At the both ends of curb, respectively
Rectangular recess bellmouth 5 and rectangular boss socket 4 are set, and when installing curb, rectangular boss socket 4 is inserted into rectangular recess bellmouth
5.This kind of hollow curbstone can collect rainwater on road surface by several bellmouths, since the microcephaly of bellmouth communicates with road surface, greatly
Leaf class sundries be not easy to rush in pipeline, compared with the straight tube inlet opening of the identical bore of the microcephaly of bellmouth, bellmouth runner
Resistance to water-flow is again smaller, is also not easy to plug.The water seepage hole of bellmouth also has same advantage, connects with the sandy soil layer under the road surface of pavement
Logical bellmouth, rainwater is readily permeable to enter sandy soil layer, and leaf class sundries is not easy to rush in pipeline.
For the casting concrete building block for making this kind of structure, a kind of mold of compound core pulling structure can be designed；Such as Fig. 4-Fig. 8
It is shown；The entirety that the mold is formed by bottom plate, left and right side plate, rectangular recess bellmouth form end plate 6, the molding of rectangular boss socket
End plate 7, composite core rod composition.Entire mold is the van-type structure of a uncovered, and rectangular recess bellmouth forms end plate 6, rectangular boss
Socket forms end plate 7 in two end plate planes, there is rectangular boss and rectangular recess respectively, and it is corresponding to assign casting concrete building block
Rectangular recess bellmouth and rectangular boss socket.On rectangular recess bellmouth molding end plate 6, rectangular boss socket molding end plate 7
It is disposed with the card slot of installation compound core pulling plug.Compound core pulling structure is the elliptoid metal of class or the core of plastics by a cross section
Stick 9 and the elastic tape 10 with several small cone bodies 11 covered in 9 periphery of plug are constituted, the number of the small cone body 11 on elastic tape 10
Amount and shape are corresponding with the taper inlet opening of design, taper water seepage hole.
This is specifically to mould the composable mold for being used to produce decorative concrete products that bellmouth material moulding technology makes, this kind
The mold application method of compound core pulling structure is as follows:
The first step, for installation left and right side plate on bottom plate, rectangular recess bellmouth forms end plate 6, rectangular boss socket forming ends
Plate 7 is mounted on bottom plate and left and right side plate, the van-type structure of one uncovered of shape, then composite core rod is mounted on rectangular recess bellmouth
Form end plate 6, rectangular boss socket forms on end plate 7.Mold installation terminates.
Second step pours concrete mix in case and conserving to demoulding strength.
Third step extracts the plug of metal or plastics out, the remaining elastic tape with several small cone bodies.
4th step, due to foring the elliptoid cavity of class after plug extraction, then with tool by elastic tape to cavity center
It stirs, separates the elastic tape with several small cone bodies with concrete segment, extract the elastic tape with several small cone bodies out, obtain
For the elliptoid cavity of class as sprue, sprue left and right sides is arranged with the concrete curb of several round taper holes.
Fig. 9-Figure 11 is the mold releasability method schematic diagram of compound core pulling structure, extracts plug out when demoulding in Fig. 9, remaining
Elastic tape is at this time stirred elastic tape to cavity center, as shown in arrow direction as shown in Figure 10.In Figure 11, make on elastic tape
Small cone body separated with concrete segment, entire elastic tape can facilitate to be extracted out from concrete segment.
Specific embodiment: embodiment 1 make the curb mould structure as described above, mold bottom plate, side plate, end plate
By thermoplastic injection molding, plug is made by metal hollow pipe, and elastic tape uses natural rubber.Mold is using being preceding both needed to
Coat release agent.
The foregoing description of the disclosed embodiments, it is all that " internal drainage " curb is formed using pre-buried similar hollow part
Production technology and mold all within the scope of this patent；Professional and technical personnel in the field are made to can be realized or use this hair
It is bright.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein
Consistent widest scope.
Claims (1)
1. a kind of have both the hollow curbstone catchment, drain, seeping water, it is characterised in that: the hollow curbstone shape is in one
Empty cuboid, along its length, having a cross section is the elliptoid cavity of class (2), the sprue as curb draining；It is main
It is arranged with several taper inlet openings (1) on the left of runner, is arranged with several taper water seepage holes (3) on the right side of sprue；Wherein, taper into
Water hole (1) and taper water seepage hole (3) are connected to sprue, the stub end and class of taper inlet opening (1) and taper water seepage hole (3)
The sprue of elliptoid cavity (2) is connected to, the small head end of taper inlet opening (1) and taper water seepage hole (3) and pavement of road or
Sandy soil layer connection under the road surface of pavement；Specifically:
The taper inlet opening (1) being connected to pavement of road is used as inlet opening, for collecting rainwater on road surface；
The taper water seepage hole (3) being connected to the sandy soil layer under the road surface of pavement is used as water seepage hole, can penetrate into rainwater on road surface
Enter the sandy soil layer under the road surface of pavement；At the both ends of curb, rectangular recess bellmouth (5) and rectangular boss socket is respectively set
(4), when installing curb, rectangular boss socket (4) is inserted into rectangular recess bellmouth (5)；
The hollow curbstone is poured using following mold, which includes the entirety (8) of bottom plate, left and right side plate formation, rectangle
Groove bellmouth forms end plate (6), and rectangular boss socket forms end plate (7), plug (9), and covers the elastic tape in plug periphery
(10)；Rectangular recess bellmouth form end plate (6), rectangular boss socket molding end plate (7) plane on, have respectively rectangular boss and
Rectangular recess assigns the corresponding rectangular recess bellmouth of casting concrete building block and rectangular boss socket；Cross section is class ellipticity
Metal or plastics plug (9) constituted with the elastic tape (10) for covering in plug (9) periphery with several small cone bodies (11) it is multiple
Close pulled core structure；It is compound that installation is disposed in rectangular recess bellmouth molding end plate (6), rectangular boss socket molding end plate (7)
The card slot of the plug (9) of core pulling；The taper inlet opening of the number and shape of small cone body (11) on elastic tape (10) and design,
Taper water seepage hole is corresponding；
The application method of the corresponding mold of the compound core pulling structure is as follows:
The first step, installation left and right side plate is on bottom plate, and rectangular recess bellmouth forms end plate (6), rectangular boss socket forms end plate
(7) it is mounted on bottom plate and left and right side plate, the van-type structure of one uncovered of shape, then plug (9) is mounted on former and later two end plates
On, mold installation terminates；
Second step pours concrete mix in case and conserving to demoulding strength；
Third step extracts the plug of metal or plastics out, the remaining elastic tape with several small cone bodies；
4th step is formd the elliptoid cavity of class after being extracted out due to plug, then is stirred elastic tape to cavity center with tool,
It separates the elastic tape with several small cone bodies with concrete segment, extracts the elastic tape with several small cone bodies out, it is ellipse to obtain class
For the cavity of round shape as sprue, sprue left and right sides is arranged with the concrete curb of several round taper holes；
The bottom plate of the mold, side plate, end plate are by thermoplastic injection molding, and plug is by metal or plastic hollow control
Make, elastic tape uses natural rubber；Mold using be preceding both needed to coating release agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267052.4A CN105887617B (en) | 2016-04-27 | 2016-04-27 | It is a kind of to have both the hollow curbstone catchment, drain, seeping water and pour mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610267052.4A CN105887617B (en) | 2016-04-27 | 2016-04-27 | It is a kind of to have both the hollow curbstone catchment, drain, seeping water and pour mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105887617A CN105887617A (en) | 2016-08-24 |
| CN105887617B true CN105887617B (en) | 2019-03-22 |
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| CN201610267052.4A Active CN105887617B (en) | 2016-04-27 | 2016-04-27 | It is a kind of to have both the hollow curbstone catchment, drain, seeping water and pour mold |
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| CN106217605B (en) * | 2016-08-29 | 2018-08-17 | 无锡市东北塘永丰橡塑厂 | It is a kind of to be used to produce the curb stone mould with drain function |
| CN107090758A (en) * | 2017-05-26 | 2017-08-25 | 安徽科诺海绵城市生态技术有限公司 | A kind of ecological permeable road tooth and its laying structure and preparation method thereof |
| CN107059538A (en) * | 2017-06-15 | 2017-08-18 | 扬中恒瑞金属制品有限公司 | The new draining curb of formula is just arranged in a kind of high sealing damping shock resistance |
| CN107653971A (en) * | 2017-10-27 | 2018-02-02 | 四川省润龙环保工程有限公司 | A kind of concrete component unit-combination type water storage module and its application |
| US10589360B2 (en) | 2018-06-17 | 2020-03-17 | Arevo, Inc. | Systems of articles of manufacture with corresponding fiducial marks and dimensional variations |
| US20190381581A1 (en) * | 2018-06-17 | 2019-12-19 | Arevo, Inc. | Fiducial Marks for Articles of Manufacture with Non-Trivial Dimensional Variations |
| CN110640873A (en) * | 2019-09-27 | 2020-01-03 | 西安建筑科技大学 | But reverse mould of pouring of drainage concrete curb |
| CN112360553A (en) * | 2020-11-06 | 2021-02-12 | 中国石油大学(华东) | Underground horizontal ramp surface water collecting system for coal mine |
| CN116354657A (en) * | 2023-03-23 | 2023-06-30 | 桂林理工大学 | Preparation method of high-strength UHPC hollow thin-wall structured curbstone |
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| KR20140013601A (en) * | 2012-07-25 | 2014-02-05 | 오권엽 | The boundary block integrally joined with the side gutter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US399194A (en) * | 1889-03-05 | Street-curb and subsoil drain | ||
| GB215863A (en) * | 1923-02-23 | 1924-05-22 | Low Laithes Colliery Company L | Improvements in or relating to moulds for the manufacture of concrete paving blocks such as kerb, channel and the like |
| GB216016A (en) * | 1923-07-25 | 1924-05-22 | Toichi Nose | A process of constructing culverts or pipes of concrete |
| US1656653A (en) * | 1926-06-23 | 1928-01-17 | Keller Arthur Reginald Von | Draining curbstone |
| FR2638177A1 (en) * | 1988-10-26 | 1990-04-27 | Carbonatto Andre | Curbstone comprising spaces for cables to be passed and/or drawn through |
| JPH0952218A (en) * | 1995-08-11 | 1997-02-25 | Koken Sangyo Kk | Form for concrete product |
| GB2318081A (en) * | 1996-10-10 | 1998-04-15 | Aco Technologies Plc | Casting a drainage channel block |
| CN2395867Y (en) * | 1999-10-11 | 2000-09-13 | 万程 | Mandrel for producing hole cencrete structural member |
| CN2507897Y (en) * | 2001-11-28 | 2002-08-28 | 李俊明 | Kerb precast element capable of dust-filtering, draining and conserving groundwater |
| WO2009090388A1 (en) * | 2008-01-17 | 2009-07-23 | Pipeline & Drainage Systems Plc | Kerb block and system |
| WO2013033512A2 (en) * | 2011-09-01 | 2013-03-07 | Watt Fuel Cell Corp. | Process for producing tubular ceramic structures of non-circular cross section |
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| KR20140013601A (en) * | 2012-07-25 | 2014-02-05 | 오권엽 | The boundary block integrally joined with the side gutter |
| CN104942977A (en) * | 2015-06-29 | 2015-09-30 | 中民筑友有限公司 | Core pulling pipe of prefabricated member and manufacturing method of prefabricated member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105887617A (en) | 2016-08-24 |
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