CN105908906A - Roof panel capable of improving wind uplift resistance - Google Patents
Roof panel capable of improving wind uplift resistance Download PDFInfo
- Publication number
- CN105908906A CN105908906A CN201610435114.8A CN201610435114A CN105908906A CN 105908906 A CN105908906 A CN 105908906A CN 201610435114 A CN201610435114 A CN 201610435114A CN 105908906 A CN105908906 A CN 105908906A
- Authority
- CN
- China
- Prior art keywords
- roof boarding
- uplift resistance
- wind uplift
- section
- segment
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
- E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/38—Devices for sealing spaces or joints between roof-covering elements
Abstract
The invention relates to a roof panel system, and provides a roof panel capable of improving wind uplift resistance. The roof panel comprises a bottom plate capable of stretching across two adjacent purlines, and connecting parts capable of being fixed to installation pieces are arranged at the two opposite ends of the bottom plate. Each connecting part comprises a plate rib which is bent and extends along the corresponding end of the bottom plate. Each plate rib is provided with two extension sections which extend upwards, and a bent section which can abut against the interior of a downward corner of the corresponding installation piece and is bent upwards around the corner, wherein the bent section is connected with the two extension sections, and one extension section is formed by bending the corresponding end of the bottom plate. According to the roof panel, the connecting parts connected with the installation pieces are provided with the bent section structures, and thus the end strength of the roof panel can be improved; meanwhile, the bent section structures can abut against the corners of the installation pieces when matched with the installation pieces, and thus the wind uplift resistance of the roof panel in the application process can be effectively improved.
Description
Technical field
The present invention relates to roof board system, particularly relate to a kind of roof boarding improving wind uplift resistance.
Background technology
Die mould metal Roof system because of the features such as its lightweight, high-strength, attractive in appearance, easy construction on airport, physical culture
The heavy constructions such as venue, conference and exhibition center, industrial premises, storage, railroad platform awning, railway station building roofing
In use in a large number.But because wind resistance takes off ability not, metal Roof is taken off the phenomenon frequency fallen by wind generation, metal
The phenomenon of roofing infiltration also frequency has generation.
Metal current Roof system mainly has single-layer roof plate and double-deck two kinds of forms of roof boarding, single-layer roof plate
Or the fixed form of the top plate of bilayer roof board system mainly has the shapes such as bridging type, biting connecions, standing-seam
Formula.
For lap jointing type roof boarding, plate is its weak part place with the lap-joint of plate, and this joint form is
By tapping screw, plate lap-joint is fixed with roofing Os Draconis or support, by rubber washer and resistance between screw and plate
Wait fluid sealant and carry out sealing waterproof.Seepage is all easily caused, leakage at two-ply lap-joint and tapping screw hole for nailing
Water can cause tapping screw and the corrosion of tapping screw hole location steel, and the fastening effect of tapping screw can be big
Give a discount and even lose its interconnection function.
Biting connecions and standing-seam formula connect without penetrating roof boarding with screw, have stopped roof leakage and infiltration
The appearance of phenomenon, but owing to support and tapping screw Hide All are under roof boarding, construction quality often without
Method ensures, causes roof boarding regional area disappearance support or support bracket fastened self threading pin lazy weight, roof boarding
With the scarce capacity that is engaged of support, it is relatively low that wind resistance takes off ability, and high wind area should not use.
Summary of the invention
It is an object of the invention to provide a kind of roof boarding improving wind uplift resistance, it is intended to be used for solving now
The problem that some roof board winds take off ability.
The present invention is achieved in that
The embodiment of the present invention provides a kind of roof boarding improving wind uplift resistance, including can be across adjacent two purlins
The base plate of bar, two ends relative in described base plate are respectively provided with the connecting portion can being fixed on installed part,
Each described connecting portion all includes bending, along the end of described base plate, the rib of slab extended, and described rib of slab has upwards
Stretch two sections of extensions and can support to the turning that described installed part is arranged down and around described turning to
The bending segment of upper bending, described bending segment connects extension described in two, and wherein extension described in by described
The end of base plate is bent to form.
Further, wherein extension described in is tilting section, and described tilting section upwards prolongs along described bottom plate inclined
Stretching formation, another described extension is vertical section, described vertical section along described bending segment upper end straight up
Extend and formed.
Further, described bending segment includes the first cambered plate and the second cambered plate, is smoothly connected between the two,
And described first cambered plate is formed by described tilting section bending extension, described second cambered plate is smoothly connected to institute
State vertical section.
The bending radius of described second cambered plate is less than the bending radius of described first cambered plate.
Further, two described connecting portions are arranged along the axisymmetrical of described base plate.
Further, described base plate is arranged at intervals with some projections, and the bearing of trend of described projection is parallel
Length direction in described connecting portion.
Further, each described connecting portion also includes to fix, with described installed part, the buckle joint being connected.
Further, described buckle joint have the most horizontal-extending horizontal segment in the upper end by described rib of slab with
And the upsloping segment extended the most obliquely by described horizontal segment.
Further, described buckle joint also has inflection section, and described inflection section is returned along the upper end of described upsloping segment
Folding and fit successively described upsloping segment and described horizontal segment.
Further, have away from the end of described upsloping segment in described inflection section and protrude described horizontal segment
Catch, described catch extends obliquely.
The method have the advantages that
In the roof boarding of the present invention, rib of slab has bending segment structure, it is possible to be connected carrying out with installed part installing
Time, it can support the corner to installed part, its intensity being not only able to strengthen roof boarding connecting portion, with
Time also make roof boarding have higher wind resistance in application process to take off ability.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the roof board system that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the roof boarding of the improved wind uplift resistance that Fig. 2 provides for the embodiment of the present invention；
Fig. 3 is enlarged drawing at A in Fig. 2；
Fig. 4 is that the roof boarding of the improved wind uplift resistance of the roof board system of Fig. 1 is installed fixing with installed part
Structural representation.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The all other embodiments obtained under property work premise, broadly fall into the scope of protection of the invention.
Seeing Fig. 1-Fig. 3, the embodiment of the present invention provides a kind of roof boarding 2 improving wind uplift resistance, mainly
On the purlin 1 being installed in roof board system, it include can across the base plate 21 of adjacent two purlins 1 and point
It is not positioned at two connecting portions 22 at two opposed ends of base plate 21, is specially and all has in this every an end portion
Having connecting portion 22, every a junction 22 is bent extension formation, two companies by the wherein one end of base plate 21
Connect and be structure as a whole between portion 22 and base plate 21, base plate 21 is provided with some spaced protruding 211,
The length of protruding 211 is each parallel to the length direction of connecting portion 22, and cross section is circular arc, and it can necessarily journey
Strengthening the intensity of base plate 21 self on degree, every a junction 22 is prolonged by the wherein one end bending of base plate 21
Stretch formation, be structure as a whole between two connecting portions 22 and base plate 21, two connecting portion 22 opposed bottom 21
Axis be symmetric, such that it is able to avoid roof boarding 2 application during produce before and after problem,
Facilitating processing and fabricating, when being sequentially connected with between the most each roof boarding 2, adjacent two roof boardings 2 lead to simultaneously
Cross the most adjacent two connecting portion 22 to be attached fixing, and be provided with at every a junction 22
For connecting the installed part 3 of another parts, i.e. often a junction 22 is all to there being installed part 3, adjacent two
Only need to have an installed part 3 between individual roof boarding 2, now an installed part 3 is to there being two connecting portions 22,
Both are formed to connect by this installed part 3 and fix, and two roof boardings 2 being positioned at outside are respectively provided with a company
Meeting portion 22 to be connected with other installing component, now an installed part 3 is only to there being a connecting portion 22, logical
Cross installed part 3 so that the roof boarding 2 being positioned at outside is connected fixing with the formation of other installing component, and
When connecting portion 22 connects with corresponding installed part 3, connecting portion 22 stretches into away from the end sections of base plate 21
In this installed part 3, installed part 3 is vertically fixed the part that connecting portion 22 stretches into, and installed part 3 is certainly simultaneously
Body is also each attached on the purlin 1 of correspondence, and then roof boarding 2 is mounted on purlin 1.This
In bright, each roof boarding 2 is connected with corresponding installed part 3 by the connecting portion 22 of end, not only makes
The roof boarding 2 respectively set gradually is connected as an entirety, and to be mounted on by corresponding roof boarding 2 right simultaneously
On the purlin 1 answered, and owing to two ends of each roof boarding 2 all use installed part 3 to be fixed,
When wind-engaging impacts, stability is the highest, and additionally the end sections of the connecting portion 22 of roof boarding 2 stretches into installed part
In 3, it is fixed roof boarding 2 by installed part 3 along the direction being perpendicular to base plate 21, to this along being perpendicular to
The orientation of each roof boarding 2, each roof boarding 2 is respectively provided with in part-structure stretches into installed part 3 and compresses,
Roof boarding 2 be all difficult to when by Wind impact on vertical direction by its by installed part 3 in deviate from, wind resistance
Take off ability stronger.Additionally for above-mentioned roof board system, take off ability owing to it has stronger wind resistance,
Can apply to various place, such as airport, stadiums, conference and exhibition center, industrial premises, storage, ferrum
Way station awning or railway station building roofing, application is widely.
Seeing Fig. 2-Fig. 4, the structure of refinement connecting portion 22, every a junction 22 all includes rib of slab 23, plate
Rib 23 is folded upward at extending formation along the wherein one end of base plate 21, and rib of slab 23 is divided into three parts, including two
Section extension and one end bending segment 232, two extensions all upwardly extend, and one of them extension is base plate
The end of 21 is folded upward at being formed, and another extension is the most above, and buckle joint 24 is connected with its upper end,
Two ends of bending segment 232 connect the upper end of a wherein extension and the lower end of another extension respectively,
Installed part 3 has the corner structure arranged down, when installed part 3 is installed fixing with corresponding roof boarding 2,
The bending segment 232 of its connecting portion 22 correspondence has part-structure and supports to this turning of installed part 3.This reality
Execute in example, refined the structure of rib of slab 23, between two extensions, there is bending segment 232, with installed part 3
After installation, bending segment 232 part is supported to the turning of installed part 3, and bending segment 232 also to detour simultaneously
This turning, and roof boarding 2 is mainly subject to is all impacting of lower section wind-force, the turning of installed part 3 can be produced
Life compresses power and reduces the probability that roof boarding 2 is thrown further, and the wind resistance being effectively improved roof board system is taken off
Ability.Usually, roof boarding 2 can use Al-Zn coated steel or Al-Mg-Mn plate to make, and its effective width is
300-600mm, thickness is 0.6-1.2mm, and the height of rib of slab 23 is then between 60-90mm, for room
The length of panel 2 is then and the interval of adjacent two purlins 1 is corresponding, the most general two adjacent purlins 1
Being spaced apart 750-950mm, the length of the most each roof boarding 2 is also 750-950mm, and generally by roofing
Connecting portion 22 is made in plate 2 end in the width direction, installed part 3 connect fixing adjacent two roof boardings 2 it
Between broadside.
Seeing Fig. 2 and Fig. 4, optimize above-described embodiment, in rib of slab 23, the extension being positioned at lower section is
Tilting section 231, tilting section 231 is extended obliquely by the end of base plate 21 and is formed, and extension above
The vertical section of Duan Zewei 233, this vertical section 233 extends formation straight up along the upper end of bending segment 232.Tilt
Section 231 is arranged obliquely, and base plate 21 is horizontally disposed with, and both enclose the angle set more than 90 degree and less than 180
Degree, i.e. tilting section 231 are along away from the direction of base plate 21 and extending obliquely, thus not only strengthen roof boarding
The intensity of 2, also allows for extending partially into bending segment 232 corner of installed part 3 simultaneously, and vertically section
233 are arranged straight up, can improve roof boarding 2 wind resistance and take off ability.Usually, bending segment 232 includes
Two parts, the respectively first cambered plate 2321 and the second cambered plate 2322, it is smoothly connected between the two, and inclines
Tiltedly the upper end of section 231 is smoothly connected to the first cambered plate 2321, the second cambered plate 2322 and vertical section 233 it
Between also for being smoothly connected, and with installed part 3 install after, the first cambered plate 2321 is supported to installed part 3
In turning, and the second cambered plate 2322 partially surrounds the turning of installed part 3 so that connecting portion 22 entirety can
Stretch out in turning by installed part 3.Typically, the radius of curvature of the first cambered plate 2321 is more than the second cambered plate
The radius of curvature of 2322, the turning of installed part 3 is two vertically disposed planar structures, the first cambered plate 2321
The most tangent with two planar structures, and extend laterally along horizontally disposed planar structure, the second cambered plate 2322
By wrapping around this planar structure, such that it is able to when wind takes off roof boarding 2, by this turning and bending segment 232
Fit structure strengthen roof board system wind resistance take off ability.
Seeing Fig. 3 and Fig. 4, connecting portion 22 also includes buckle joint 24 further, refines buckle joint 24
Structure, buckle joint 24 has horizontal segment 241 and a upsloping segment 242, horizontal segment 241 one end and rib of slab 23
Upper end connect, the upper end horizontal buckling of the most vertical section 233 is formed, and its other end then connects
To the bottom of upsloping segment 242, i.e. upsloping segment 242 is bent to form obliquely by this end of horizontal segment 241.
In the present embodiment, upsloping segment 242 is similar with the bearing of trend of the tilting section 231 of rib of slab 23, itself and horizontal segment
241 are and extend laterally, and when roof boarding 2 is installed with installed part 3, upsloping segment 242 stretches into installed part 3
Inner side, the vertical level of compression section 241 of installed part 3 simultaneously, to this assume roof boarding 2 be lifted, then need
Upsloping segment 242 is bent to and horizontal segment 241 same plane by the active force first producing horizontal direction, then continues
Both are extracted out by the continuous active force used in horizontal direction by the installed part 3 under vertical clamped condition, difficulty
The highest, the roof board system wind uplift resistance i.e. using this structure to install is the best.
Optimizing the structure of above-mentioned buckle joint 24, buckle joint 24 also has inflection section 243, and this inflection section 243 is
The upper end inflection of above-mentioned upsloping segment 242 is formed, and its fit successively upsloping segment 242 and horizontal segment 241.This reality
Execute in example, make buckle joint 24 time by roll folding formed inflection section 243, inflection section 243 along upper tiltedly
Section 242 extends with horizontal segment 241 laminating so that buckle joint 24 is in upsloping segment 242 and horizontal segment 241 part
It is double-decker, such that it is able to improve the intensity of buckle joint 24 part, and upsloping segment 242 is stretched into peace
Time inside piece installing 3, inflection section 243 also has part-structure and is positioned at installed part 3, and this wind is taken off roof boarding 2
Time need will both Synchronous Bending, i.e. can improve the wind uplift resistance of roof board system further.Usually,
Also having catch 244 in inflection section 243 away from the end of upsloping segment 242, this catch 244 is by horizontal segment
241 stretch out, and extend obliquely, and it can block the laminating gap between inflection section 243 and horizontal segment 241,
Rainwater is avoided to be penetrated in installed part 3 by this gap.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (10)
1. can improve a roof boarding for wind uplift resistance, including can be across the base plate of adjacent two purlins, it be special
Levy and be: two ends relative in described base plate are respectively provided with the connecting portion can being fixed on installed part, often
Connecting portion described in one all includes bending, along the end of described base plate, the rib of slab extended, and described rib of slab has upwards to be stretched
Two sections of extensions of exhibition and can support to the turning that described installed part is arranged down and around described turning upwards
The bending segment of bending, described bending segment connects extension described in two, and wherein extension described in by the described end
The end of plate is bent to form.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 1, it is characterised in that: Qi Zhongyi
Described extension is tilting section, and described tilting section upwardly extends formation along described bottom plate inclined, another described extension
Section is vertical section, and described vertical section extends formation straight up along the upper end of described bending segment.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 2, it is characterised in that: described curved
Trisection includes the first cambered plate and the second cambered plate, is smoothly connected between the two, and described first cambered plate by
Described tilting section bending extension is formed, and described second cambered plate is smoothly connected to described vertical section.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 3, it is characterised in that: described
The bending radius of two cambered plates is less than the bending radius of described first cambered plate.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 1, it is characterised in that: two institutes
State the connecting portion axisymmetrical setting along described base plate.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 1, it is characterised in that: the described end
It is arranged at intervals with some projections on plate, and the bearing of trend of described projection is parallel to the length side of described connecting portion
To.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 1, it is characterised in that: Mei Yisuo
State connecting portion also to include to fix, with described installed part, the buckle joint being connected.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 7, it is characterised in that: described button
Joint has the most horizontal-extending horizontal segment in the upper end by described rib of slab and by described horizontal segment laterally
The upsloping segment extended obliquely.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 8, it is characterised in that: described button
Joint also has inflection section, described inflection section along the upper end inflection of described upsloping segment and fit successively described upper tiltedly
Section and described horizontal segment.
The roof boarding of wind uplift resistance can be improved the most as claimed in claim 9, it is characterised in that: in institute
Stating inflection section and have the catch protruding described horizontal segment away from the end of described upsloping segment, described catch is oblique
Lower extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435114.8A CN105908906B (en) | 2016-06-17 | 2016-06-17 | The roof boarding of wind uplift resistance can be improved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435114.8A CN105908906B (en) | 2016-06-17 | 2016-06-17 | The roof boarding of wind uplift resistance can be improved |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105908906A true CN105908906A (en) | 2016-08-31 |
| CN105908906B CN105908906B (en) | 2018-05-25 |
Family
ID=56751555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610435114.8A Active CN105908906B (en) | 2016-06-17 | 2016-06-17 | The roof boarding of wind uplift resistance can be improved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105908906B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703252A (en) * | 2016-12-27 | 2017-05-24 | 上海华世邦模具科技股份有限公司 | Metal plate wall |
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|---|---|---|---|---|
| DE2034728A1 (en) * | 1969-07-15 | 1971-02-04 | Furrer, Josef, Altdorf, Un (Schweiz) | Method for producing an assembly connection between a sheet-metal plate, in particular a corrugated sheet metal plate, and a carrier device, as well as assembly connection produced according to the method |
| CN1167193A (en) * | 1996-04-19 | 1997-12-10 | 黄甲锡 | Roof plate mounting assembly |
| JPH10317593A (en) * | 1997-03-18 | 1998-12-02 | Maruichi:Kk | Folded roofing plate |
| CN201474182U (en) * | 2009-05-13 | 2010-05-19 | 中山市博力塑胶建材有限公司 | Roof structural plate |
| CN201507076U (en) * | 2009-09-18 | 2010-06-16 | 上海江河幕墙系统工程有限公司 | Bearing of standing-seam roof slab |
| CN202157473U (en) * | 2011-08-01 | 2012-03-07 | 海宁市正兴耐力板有限公司 | Coupling device for building daylighting plates |
| CN202745283U (en) * | 2012-09-21 | 2013-02-20 | 中盛建材有限公司 | Roofing board |
| JP2014005673A (en) * | 2012-06-26 | 2014-01-16 | Kaname:Kk | Vertically-thatched roof |
| CN104594570A (en) * | 2015-01-20 | 2015-05-06 | 北京交通大学 | Curved vertical seam metal roof panel system |
| CN205777127U (en) * | 2016-06-17 | 2016-12-07 | 中铁第四勘察设计院集团有限公司 | The roof boarding of wind uplift resistance can be improved |
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2016
- 2016-06-17 CN CN201610435114.8A patent/CN105908906B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2034728A1 (en) * | 1969-07-15 | 1971-02-04 | Furrer, Josef, Altdorf, Un (Schweiz) | Method for producing an assembly connection between a sheet-metal plate, in particular a corrugated sheet metal plate, and a carrier device, as well as assembly connection produced according to the method |
| CN1167193A (en) * | 1996-04-19 | 1997-12-10 | 黄甲锡 | Roof plate mounting assembly |
| JPH10317593A (en) * | 1997-03-18 | 1998-12-02 | Maruichi:Kk | Folded roofing plate |
| CN201474182U (en) * | 2009-05-13 | 2010-05-19 | 中山市博力塑胶建材有限公司 | Roof structural plate |
| CN201507076U (en) * | 2009-09-18 | 2010-06-16 | 上海江河幕墙系统工程有限公司 | Bearing of standing-seam roof slab |
| CN202157473U (en) * | 2011-08-01 | 2012-03-07 | 海宁市正兴耐力板有限公司 | Coupling device for building daylighting plates |
| JP2014005673A (en) * | 2012-06-26 | 2014-01-16 | Kaname:Kk | Vertically-thatched roof |
| CN202745283U (en) * | 2012-09-21 | 2013-02-20 | 中盛建材有限公司 | Roofing board |
| CN104594570A (en) * | 2015-01-20 | 2015-05-06 | 北京交通大学 | Curved vertical seam metal roof panel system |
| CN205777127U (en) * | 2016-06-17 | 2016-12-07 | 中铁第四勘察设计院集团有限公司 | The roof boarding of wind uplift resistance can be improved |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703252A (en) * | 2016-12-27 | 2017-05-24 | 上海华世邦模具科技股份有限公司 | Metal plate wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105908906B (en) | 2018-05-25 |
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