CN110295704A - Support the mineral wool board of purification air - Google Patents

Support the mineral wool board of purification air Download PDF

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Publication number
CN110295704A
CN110295704A CN201810249288.4A CN201810249288A CN110295704A CN 110295704 A CN110295704 A CN 110295704A CN 201810249288 A CN201810249288 A CN 201810249288A CN 110295704 A CN110295704 A CN 110295704A
Authority
CN
China
Prior art keywords
mineral wool
wool board
groove
purification air
mentioned
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.)
Pending
Application number
CN201810249288.4A
Other languages
Chinese (zh)
Inventor
赵庆贺
李国冉
滕伟广
武高峰
董新成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing New Building Material Group Co Ltd
Original Assignee
Beijing New Building Material Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing New Building Material Group Co Ltd filed Critical Beijing New Building Material Group Co Ltd
Priority to CN201810249288.4A priority Critical patent/CN110295704A/en
Publication of CN110295704A publication Critical patent/CN110295704A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/22Connection of slabs, panels, sheets or the like to the supporting construction
    • E04B9/24Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
    • E04B9/241Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto with the slabs, panels, sheets or the like positioned on the upperside of the horizontal flanges of the supporting construction
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer

Abstract

A kind of mineral wool board for supporting purification air is disclosed herein, and the upper surface of the mineral wool board is provided with multiple groove bodies, is filled with adsorbent material packet in the groove body.

Description

Support the mineral wool board of purification air
Technical field
This application involves but be not limited to building materials technology field, especially a kind of mineral wool board for supporting purification air.
Background technique
In the prior art, the ceiling system for appearing keel refers to the ceiling system that ceiling joist can be immediately seen;It is logical Being collocated with each other between ceiling joist and furred ceiling mineral wool board is crossed, to meet the furred ceiling demand of the interior space.
However, there are following defects for ceiling system in the prior art: connective stability is poor between mineral wool board and keel, The poor sealing effect of mineral wool board;The especially office space of large area, in such place, noise is easily hung from a certain room is incoming Push up the space on top, and then the space diffusive transport on furred ceiling top.
In addition, mineral wool board in the prior art has a single function, the single decoration function of indoor suspended ceiling only can be realized, it cannot Enough diversified demands for effectively meeting user.
Summary of the invention
The technical issues of the application solves is to provide a kind of mineral wool board for supporting purification air, can effectively overcome existing mine Technological deficiency present in cotton plate can effectively improve the comprehensive performance of mineral wool board.
In order to solve the above technical problems, this application provides a kind of mineral wool board for supporting purification air, the mineral wool board Upper surface is provided with multiple groove bodies, is filled with adsorbent material packet in the groove body.
The mineral wool board of above-mentioned support purification air, can also have a characteristic that
The adsorbent material packet includes absorbent charcoal material packet and/or biological enzyme material packet and/or photocatalyst material packet.
The mineral wool board of above-mentioned support purification air, can also have a characteristic that
The upper surface of the mineral wool board is additionally provided with photocatalyst coating.
The mineral wool board of above-mentioned support purification air, can also have a characteristic that
The lower surface of the mineral wool board is additionally provided with diatom ooze coating.
The mineral wool board of above-mentioned support purification air, can also have a characteristic that
The diatom ooze coating is internally provided with block absorbent charcoal.
The mineral wool board of above-mentioned support purification air, can also have a characteristic that
The lower surface of the mineral wool board offers the groove of the protrusion of matching T-type shoe.
The mineral wool board of above-mentioned support purification air, can also have a characteristic that
The groove includes 2 grooves for being provided with the mineral wool board lower surface, and 2 grooves are arranged in parallel;
The groove is through slot, and the both ends of the groove extend respectively to two edge of the mineral wool board.
In order to solve the above-mentioned technical problem, the present invention also provides a kind of ceiling systems, the mine including supporting purification air Cotton plate;It further include T-type keel, the T-type keel include bottom plate and the vertical plate that plate upper surface is arranged in, the top of the vertical plate For connecting suspender member, the upper surface of the bottom plate is provided with protrusion;
The mineral wool board is overlapped on the bottom plate, and the protrusion is caught in groove.
Above-mentioned ceiling system can also have a characteristic that
The clamping structure for clamping groove is provided in the protrusion.
Above-mentioned ceiling system can also have a characteristic that
The T-type keel are mineral wool board bending and molding component;
The clamping structure includes the convex rib being arranged in protrusion or rib-like structure
The application above-mentioned technical proposal has the following beneficial effects:
Compared with the prior art, the application can effectively be overcome in the prior art by the above-mentioned mineral wool board being preferably provided with Existing defect can effectively improve the comprehensive performance of mineral wool board, can effectively improve the air filtration performance of mineral wool board.
Other features and advantage will illustrate in the following description, also, partly become from specification It obtains it is clear that being understood by implementing the embodiment of the present invention.The purpose of the application and other advantages can be by illustrating Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical scheme, and constitutes part of specification, with this The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the upper surface schematic diagram of the embodiment of the present invention one;
Fig. 2 is the lower surface schematic diagram of the embodiment of the present invention one;
Fig. 3 is the side wall schematic diagram of the embodiment of the present invention one;
Fig. 4 is the structural schematic diagram one of the embodiment of the present invention two;
Fig. 5 is the structural schematic diagram two of the embodiment of the present invention two;
Fig. 6 is the structural schematic diagram one of the embodiment of the present invention three;
Fig. 7 is the structural schematic diagram two of the embodiment of the present invention three;
It illustrates:
1- mineral wool board, 11- groove body, 111- adsorbent material include 12- groove;
2-T type keel, 21- bottom plate, 22- vertical plate, 23- protrusion, 24- clamping structure.
Specific embodiment
Embodiments herein is described in detail below in conjunction with attached drawing.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can mutual any combination.
Embodiment one:
As shown in Figure 1, the embodiment of the present invention one provides a kind of mineral wool board for supporting purification air, the upper table of mineral wool board 1 Face is provided with multiple groove bodies 11, is filled with adsorbent material packet 111 in groove body 11.
In concrete operations, by the setting of above-mentioned groove body 11, it is capable of providing to the independently installed chamber of adsorbent material packet 111 Body is capable of the installation convenience and structural stability of effective guarantee adsorbent material packet 111;Pass through above-mentioned adsorbent material packet 111 Setting, can effectively adsorb the pollutant in air, can be realized the purification run of air.It should be noted that mineral wool board 1 Upper surface, as mineral wool board 1 is in ceiling system towards the surface on roof;Correspondingly, the lower surface of mineral wool board 1, as mine Cotton plate 1 is in ceiling system towards the surface of the interior space.
In the present embodiment, above-mentioned adsorbent material packet 111 includes absorbent charcoal material packet and/or biological enzyme material packet, and/or Photocatalyst material packet.
In concrete operations, the upper surface of above-mentioned mineral wool board 1 is preferably provided with 6 groove bodies;Above-mentioned 6 groove bodies can be loaded Active Carbon Materials packet is perhaps mounted with biological enzyme material packet or is mounted with photocatalyst material packet;Alternatively, above-mentioned 6 2 groove bodies in groove body are mounted with absorbent charcoal material packet, and 2 groove bodies are mounted with biological enzyme material packet, and 2 groove bodies are mounted with light touching Catalytic material packet.
In the present embodiment, above-mentioned absorbent charcoal material packet can be realized effective adsorption operations of formaldehyde, and adsorption mechanism is physics Absorption, the porosity characteristic of above-mentioned active carbon is the key point of formaldehyde adsorption;Above-mentioned biological enzyme material packet also can be realized nocuousness The adsorption operations of substance, such as formaldehyde, cutting mechanisms are biological treatment, and above-mentioned biological enzyme removes the principle of formaldehyde, are microorganism warps Crossing procreation itself can produce biological enzyme, under the double action of microorganism and enzyme, the organic matter of sources of odor is surveyed bottom and synthesizes two Carbonoxide and water, and then operation is eliminated in the decomposition that can be realized formaldehyde;Above-mentioned photocatalyst material packet also can be realized harmful substance Adsorption operations, such as formaldehyde, cutting mechanisms are chemical treatment, and above-mentioned photocatalyst is mainly nano-titanium dioxide and silica Mixture, removal principle be using in catalyst air oxygen and organic matter that the chemistry such as oxygenolysis occurs is anti- It answers, the substances such as formaldehyde is effectively eliminated.
In concrete operations, above-mentioned mineral wool board 1 be can be achieved at the same time at the physical absorption, chemical treatment and biology of harmful substance Reason operation, can be realized efficient air purifying operation.
In the present embodiment, the upper surface of above-mentioned mineral wool board 1 is additionally provided with photocatalyst coating.
In concrete operations, above-mentioned photocatalyst coating is mainly disposed to the region that 1 upper surface of mineral wool board does not offer groove body 11, It is intended to realize optimal air purification effect in limited area.
In the present embodiment, the lower surface of above-mentioned mineral wool board 1 is additionally provided with diatom ooze coating, the inside setting of diatom ooze coating There is block absorbent charcoal.
In concrete operations, by the setting of above-mentioned diatom ooze coating, it also can be realized the adsorption operations of harmful substance;Into one Step, formaldehyde absorbing efficiency, Jin Erneng can greatly be improved by the common cooperation of above-mentioned block absorbent charcoal and diatom ooze Enough increase substantially space purifying technical effect;In addition, above-mentioned diatom ooze can also be used as finish coat, the dress of the interior space is realized Decorations effect.
In conjunction with shown in Fig. 2, Fig. 3, in the present embodiment, the lower surface of mineral wool board 1 is also provided with the convex of matching T-type shoe The groove 12 risen.
In concrete operations, above-mentioned mineral wool board 1 is applied to appear the ceiling system of keel, and above-mentioned mineral wool board 1 can pass through following table The groove 12 that face opens up realizes its tight fit between T-type keel, i.e., above-mentioned groove 12 can accommodate and clamping T-type keel bottom The protrusion of plate, to realize the close attended operation between mineral wool board 1 and T-type keel;It can be by between above-mentioned protrusion and groove 12 Cooperation, the sealing performance between mineral wool board 1 and T-type keel can be effectively improved, while can also be effectively improved ceiling system Sound insulation value.
In the present embodiment, above-mentioned mineral wool board 1 includes mineral wool board 1 or plasterboard;Those skilled in the art, can basis Actual conditions select corresponding mineral wool board 1, specifically can choose above-mentioned mineral wool board 1 and perhaps plasterboard or other similar build Mineral wool board 1 is built, is subject to and can satisfy actual demand.
In the present embodiment, above-mentioned groove 12 is mutual including 2 grooves, 12,2 grooves 12 for being provided with 1 lower surface of mineral wool board It is arranged in parallel.Above-mentioned groove 12 is preferably through slot, and the both ends of groove 12 extend respectively to two edge of mineral wool board 1.
It should be noted that the section of above-mentioned groove 12 includes circle, arc or polygon, those skilled in the art Member, can select corresponding section according to the actual situation, and can choose section specifically as circular groove 12 or section is rectangle Groove 12 perhaps section be arc groove 12 or other similar shape groove 12, be can satisfy actual demand It is quasi-.
Embodiment two:
Second embodiment of the present invention provides a kind of T-type keel, it is intended to the support recorded in embodiment one be cooperated to purify air Mineral wool board, to constitute corresponding ceiling system.
As shown in figure 4, T-type keel 2 include bottom plate 21 and the vertical plate 22 that 21 upper surface of bottom plate is arranged in the present embodiment, The top of vertical plate 22 is provided with protrusion 23 for connecting suspender member, the upper surface of bottom plate 21;Mineral wool board is overlapped on bottom plate 21, convex 23 are played to be caught in groove.
Be in concrete operations, between above-mentioned bottom plate 21 and above-mentioned vertical plate 22 it is vertical connect, the top of above-mentioned T-type keel 2 can By corresponding suspender member, its attended operation between headspace is realized;The top of above-mentioned T-type keel 2 may be provided with company Hole is connect, above-mentioned suspender member can be threaded connector, and the top of threaded connector can be prefabricated in headspace, threaded connector Bottom end can run through connecting hole, and realize its attended operation between T-type keel 2 by tightening nut.
When mineral wool board is installed, protrusion 23 can be caught in recessed directly by the protrusion 23 of the groove alignment T-type keel 2 of mineral wool board In slot, the attended operation between mineral wool board and T-type keel 2 can be realized;Above-mentioned raised 23 with the mating connection of groove, Neng Gouyou Effect improves the connective stability between T-type keel 2 and mineral wool board;Contact surface between above-mentioned mineral wool board and T-type keel 2 is more, 21 upper surface of bottom plate, protrusion 23 including T-type keel 2 and the contact surface between groove etc.;The setting of above-mentioned multiple contact surfaces, energy The sealing performance between mineral wool board and T-type keel 2 is enough effectively improved, and then improves the sound insulation value of ceiling system.
In the present embodiment, above-mentioned T-type keel 2 are mineral wool board bending and molding component.In concrete operations, above-mentioned mineral wool board bending The setting of shaped component can guarantee that T-type keel 2 have preferable structural stability, can effectively improve making for T-type keel 2 Use the service life;Above-mentioned T-type keel 2 are preferably stainless steel plate bending and molding component.
In the present embodiment, the clamping structure 24 for clamping groove is provided on above-mentioned raised 23.
In concrete operations, above-mentioned clamping structure 24 includes 23 muscle of protrusion or rib-like structure being arranged in protrusion 23.On The arc structure that clamping structure 24 can also be constituted for raised 23 side walls is stated, i.e., raised 23 side walls can be set during bending forming Corresponding arcuate structure is set, is operated with the effective clamping realized between protrusion 23 and groove;The setting of above-mentioned clamping structure 24, energy Enough so that protrusion 23 firmly watches close in groove, and then the connective stability between protrusion 23 and groove can be effectively improved.
In the present embodiment, can corresponding raised 23 numbers be arranged according to actual needs in above-mentioned T-type keel 2.
As shown in figure 5, that is, only side is provided with mineral wool board to T-type keel 2 when T-type keel 2 are located at the edge of ceiling system When, a protrusion 23 can be only arranged in T-type keel 2, meet actual installation needs.
As shown in figure 4, the two sides of i.e. T-type keel 2 are respectively provided with when T-type keel 2 are located at the non-edge region of ceiling system When having mineral wool board, T-type keel 2 can be symmetrical arranged there are two protrusion 23, to meet the installation requirements of two sides mineral wool board.
The length of T-type keel 2 in the present embodiment is greater than the length of the groove of mineral wool board.
In concrete operations, the setting of above-mentioned preferred size, it is intended to which the connection that can be improved between mineral wool board and mineral wool board is steady It is qualitative.That is, when T-type keel 2 are located at the intermediate region of ceiling system, T-type keel 2 connect simultaneously using above-mentioned connection structure There is the groove of multiple a mineral wool boards.It is above-mentioned to be preferably provided with, the number of T-type keel 2 can be also effectively reduced, reality can be effectively improved The packaging efficiency on border.
Embodiment three:
The embodiment of the present invention three provides a kind of ceiling system, the mineral wool board of the support purification air including embodiment one kind With the T-type keel recorded in embodiment two;Specific setting about mineral wool board refers to the record in embodiment one, about T-type The specific setting of keel refers to the record in embodiment two, is intended to illustrate connection relationship between the two herein.
In the present embodiment, above-mentioned ceiling system includes the mineral wool board 1 and T-type keel 2 for supporting purification air, and mineral wool board 1 is taken It connects on the bottom plate of T-type keel 2, protrusion is caught in groove.
As shown in figure 5, when the two sides of T-type keel 2 are respectively connected with mineral wool board 1, can be used shown in Fig. 5 in the present embodiment Connection structure out.
As shown in fig. 6, when the side of T-type keel 2 is connected with mineral wool board 1, can be used shown by Fig. 6 in the present embodiment Connection structure.
In the description of the present application, term " setting ", " connected ", " connection ", " fixation " etc. be shall be understood in a broad sense, example Such as, " connection " may be fixed connection or may be dismantle connection, or integral connection;It can be directly connected, it can also be with Indirectly connected through an intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be The concrete meaning of language in this application.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the application It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with Suitable mode combines.
Although those skilled in the art should be understood that embodiment disclosed by the embodiment of the present invention is as above, described The content only embodiment of the present invention and the embodiment that uses for ease of understanding, be not intended to limit the invention embodiment.It is any Technical staff in fields of the embodiment of the present invention, in the premise for not departing from spirit and scope disclosed by the embodiment of the present invention Under, any modification and variation, but the scope of patent protection of the embodiment of the present invention can be carried out in the form and details of implementation, Still it should be subject to the scope of the claims as defined in the appended claims.

Claims (10)

1. a kind of mineral wool board for supporting purification air, which is characterized in that the upper surface of the mineral wool board is provided with multiple groove bodies, institute It states in groove body filled with adsorbent material packet.
2. the mineral wool board according to claim 1 for supporting purification air, which is characterized in that
The adsorbent material packet includes absorbent charcoal material packet and/or biological enzyme material packet and/or photocatalyst material packet.
3. the mineral wool board according to claim 2 for supporting purification air, which is characterized in that
The upper surface of the mineral wool board is additionally provided with photocatalyst coating.
4. the mineral wool board according to claim 2 for supporting purification air, which is characterized in that
The lower surface of the mineral wool board is additionally provided with diatom ooze coating.
5. the mineral wool board according to claim 4 for supporting purification air, which is characterized in that
The diatom ooze coating is internally provided with block absorbent charcoal.
6. according to claim 1 in -5 any support purification air mineral wool board, which is characterized in that
The lower surface of the mineral wool board offers the groove of the protrusion of matching T-type shoe.
7. the mineral wool board according to claim 6 for supporting purification air, which is characterized in that
The groove includes 2 grooves for being provided with the mineral wool board lower surface, and 2 grooves are arranged in parallel;
The groove is through slot, and the both ends of the groove extend respectively to two edge of the mineral wool board.
8. a kind of ceiling system, which is characterized in that the mineral wool including the support purification air any in claim 1-7 Plate;
It further include T-type keel, the T-type keel include bottom plate and the vertical plate that plate upper surface is arranged in, the top of the vertical plate For connecting suspender member, the upper surface of the bottom plate is provided with protrusion;
The mineral wool board is overlapped on the bottom plate, and the protrusion is caught in groove.
9. ceiling system according to claim 8, which is characterized in that
The clamping structure for clamping groove is provided in the protrusion.
10. ceiling system according to claim 9, which is characterized in that
The T-type keel are mineral wool board bending and molding component;
The clamping structure includes the convex rib being arranged in protrusion or rib-like structure.
CN201810249288.4A 2018-03-23 2018-03-23 Support the mineral wool board of purification air Pending CN110295704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810249288.4A CN110295704A (en) 2018-03-23 2018-03-23 Support the mineral wool board of purification air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810249288.4A CN110295704A (en) 2018-03-23 2018-03-23 Support the mineral wool board of purification air

Publications (1)

Publication Number Publication Date
CN110295704A true CN110295704A (en) 2019-10-01

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Family Applications (1)

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CN201810249288.4A Pending CN110295704A (en) 2018-03-23 2018-03-23 Support the mineral wool board of purification air

Country Status (1)

Country Link
CN (1) CN110295704A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2878875A1 (en) * 2004-12-03 2006-06-09 Soprema Sa Module e.g. slab, for lining wall or ceiling, has frame whose lateral sides cooperate with positioning unit connected on profile, where height of unit is equal to that of plane surface supporting against unit with self-adhesive side
CN2869180Y (en) * 2006-01-18 2007-02-14 王志伟 Mounting-stable furred ceiling gypsum ceiling
CN202401706U (en) * 2011-08-11 2012-08-29 太原科技大学 A multifunctional green and environment-friendly ceiling
CN103866893A (en) * 2014-02-21 2014-06-18 上海卡邦建材科技有限公司 Composite metal ceiling
CN106284895A (en) * 2016-08-04 2017-01-04 苏州柘沁金属制品有限公司 Novel wooden panel material
CN206467942U (en) * 2017-01-10 2017-09-05 新昌县七星街道秀丽建材装饰材料经营部 A kind of Multifunctional diatom ooze decorative panel
CN107165325A (en) * 2017-07-19 2017-09-15 江苏东保装饰集团有限公司 A kind of large area mineral wool board ceiling structure
CN206844451U (en) * 2017-06-15 2018-01-05 绍兴明煌建材科技有限公司 A kind of waterproof furred ceiling building material component

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2878875A1 (en) * 2004-12-03 2006-06-09 Soprema Sa Module e.g. slab, for lining wall or ceiling, has frame whose lateral sides cooperate with positioning unit connected on profile, where height of unit is equal to that of plane surface supporting against unit with self-adhesive side
CN2869180Y (en) * 2006-01-18 2007-02-14 王志伟 Mounting-stable furred ceiling gypsum ceiling
CN202401706U (en) * 2011-08-11 2012-08-29 太原科技大学 A multifunctional green and environment-friendly ceiling
CN103866893A (en) * 2014-02-21 2014-06-18 上海卡邦建材科技有限公司 Composite metal ceiling
CN106284895A (en) * 2016-08-04 2017-01-04 苏州柘沁金属制品有限公司 Novel wooden panel material
CN206467942U (en) * 2017-01-10 2017-09-05 新昌县七星街道秀丽建材装饰材料经营部 A kind of Multifunctional diatom ooze decorative panel
CN206844451U (en) * 2017-06-15 2018-01-05 绍兴明煌建材科技有限公司 A kind of waterproof furred ceiling building material component
CN107165325A (en) * 2017-07-19 2017-09-15 江苏东保装饰集团有限公司 A kind of large area mineral wool board ceiling structure

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Application publication date: 20191001