CN106669426B - A kind of wound membrane element and its method for coiling - Google Patents
A kind of wound membrane element and its method for coiling Download PDFInfo
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- CN106669426B CN106669426B CN201611270125.1A CN201611270125A CN106669426B CN 106669426 B CN106669426 B CN 106669426B CN 201611270125 A CN201611270125 A CN 201611270125A CN 106669426 B CN106669426 B CN 106669426B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/26—Polyalkenes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of wound membrane elements, it is rolled by sheet perineurium, it includes special-shaped film, plate membrane, intake end cover and production water end (W.E.) lid, special-shaped film connect to form sheet perineurium with plate membrane, sheet perineurium both ends are respectively water inlet end and production water end (W.E.), is being produced from water end (W.E.) side close at end seal tree lace, concentrated water outlet is formed among adjacent production aquaporin, the production aquaporin of the sheet perineurium water inlet end side seals, intake end cover is arranged in water inlet end side after the sheet perineurium roll-forming, it produces the setting of water end (W.E.) side and produces water end (W.E.) lid, and produce the intake tunnel sealing of water end (W.E.) side.The invention further relates to a kind of method for coiling of wound membrane element.Wound membrane element of the invention changes film bag shape, water inlet flow channel can be provided and produce water flow passage by realizing film bag itself, eliminate central tube, water inlet filter and concentrated water filter, achieve the purpose that reduce rolled film cost, and water flow passage mode is produced by changing, film bag length is increased, the filling area of rolled film is improved.
Description
Technical field
The present invention relates to wound membrane element and its method for coiling, are widely used in the separation, filtering and purification dress of water
In setting.
Background technique
Wound membrane element is existing market using one of extensive film application form, and with loading, density is big, installs operation
Effective membrane area is larger in easy, compact-sized, unit volume, manufacture craft is relatively easy.Existing wound membrane element is flat
Plate film roll system forms, including plate diaphragm, water inlet filter, production water filter, glue and central tube etc..Wound membrane element is to water flowing
Different from traditional filtering stream direction, water supply is introduced from membrane component end, and water supply is flowed along the parallel direction of film surface, quilt
Isolated product water is perpendicular to film surface, enters through film and produces moisture film bag, vertically, laterally mutually hands in this way, forming one
The flow direction of fork.Since the diaphragm of traditional wound membrane element is writing board shape, thus intake tunnel and produce aquaporin respectively by
Filter of intaking is provided with water filter is produced, and increases the cost of wound membrane element in this way.Meanwhile the film bag of wound membrane element cannot mistake
It is long, it is collected in central tube because producing water, the far and near of distance center pipe influences to produce hydraulic pressure drop, thus cause water yield uneven,
Fouling membrane degree not parity problem.In addition, film bag shortens, filling area can be reduced.
Summary of the invention
The object of the invention is to the costs in order to reduce rolled film, improve the filling area of rolled film.For this purpose, of the invention
Propose a kind of wound membrane element and its method for coiling, wound membrane element of the invention eliminates central tube, water inlet filter and dense
Water filter has achieved the purpose that reduce rolled film cost, also, has produced water flow passage mode by changing, and increases film bag length, mentions
The high filling area of rolled film.
It is to change film bag shape in place of key improvements of the invention, water inlet flow channel can be provided by realizing film bag itself
With production water flow passage.The specific structure of wound membrane element of the invention is as follows:
It is to be rolled by sheet perineurium comprising special-shaped film, plate the present invention provides a kind of wound membrane element
Film, intake end cover and water end (W.E.) lid is produced, the abnormity film is made of male and fomale(M&F) and backboard, and male and fomale(M&F) includes upper convex surface and recessed flat
Face, backboard are fixedly connected with recessed planar underside, to form cavity between backboard and upper convex surface, backboard is non-woven fabrics,
Male and fomale(M&F) is the composite construction of non-woven fabrics and film layer, and the upside of male and fomale(M&F) is film layer, and downside is non-woven fabrics, and plate membrane is by plate membrane
Non-woven fabrics and plate membrane film layer are constituted, and special-shaped film and plate membrane are stacked on special-shaped film backboard and lower concave plane corresponding position back-to-back
It is connected and fixed to form the sheet perineurium, sheet perineurium both ends are respectively water inlet end and produce water end (W.E.), flank producing water end (W.E.) one
Proximal end sealing glue position, is formed with concentrated water outlet among adjacent production aquaporin, and the production water of the sheet perineurium water inlet end side is logical
Road seals, and intake end cover is arranged in water inlet end side after the sheet perineurium roll-forming, produces the setting of water end (W.E.) side and produces water end (W.E.) lid, and
Produce the intake tunnel sealing of water end (W.E.) side.
The material of the film layer of the film layer and plate membrane of the male and fomale(M&F) is that polysulfones, polyether sulfone, Kynoar, chlorination are poly-
One or more of blendings of ethylene.
The connection of the backboard and recessed planar underside and the connection of the special-shaped film and plate membrane be by adhesive,
Hot melt or ultrasound realize bonding, 1~30MPa of adhesion strength.
The length of concave plane is 2.0~5.0mm under the abnormity film；The height of the abnormity film upper convex surface is 0.3~
1.8mm；2.5~6.5mm of the abnormity film constitutional repeating unit length.
The concentrated water outlet is by punching or carrying out trapezoidal cut out among adjacent production aquaporin.
The mode of the punching is mechanical punching, and the hole is one or two kinds of shape of round hole, circular arc rectangular opening
Mixing.
The diameter of the round hole is 1.0~4.0mm；The width of the circular arc rectangular opening is 1.0~4.0mm, and length is
3.0~20.0mm.
The mode of cutting out is that ultrasonic wave is cut out or computer laser is cut out.
The present invention also provides a kind of method for coiling of wound membrane element, and this method comprises the following steps:
(1) preparation of special-shaped film: special-shaped film is made of backboard and male and fomale(M&F), and backboard is non-woven fabrics, and male and fomale(M&F) is non-woven fabrics
It with the composite construction of film layer, is fixedly connected on the downside of backboard and male and fomale(M&F), the upside of male and fomale(M&F) is film layer, and downside is non-woven fabrics, recessed
Convex surface includes lower concave plane and upper convex surface, and preparation method is that flat composite membrane passes through special-shaped mould thermocompression forming or non-woven fabrics
Film layer is coated with after special-shaped mould thermocompression forming；
(2) sheet perineurium prepare: be stacked special-shaped film back-to-back with plate membrane, on special-shaped film backboard with lower concave plane pair
Should place be connected and fixed to form the sheet perineurium, sheet perineurium both ends are respectively water inlet end and produce water end (W.E.)；
(3) concentrated water is portalled: being produced water end (W.E.) side close to end sealing glue position, is being formed concentrated water among adjacent production aquaporin and go out
Mouthful, construct complete concentrated water runner；
(4) perineurium rolls: in water inlet end side, sheet perineurium being produced aquaporin sealing, then rolls into sheet perineurium
Cylindrical body；
(5) trimming end seal: cylindrical body perineurium both ends are trimmed, and cylindrical body perineurium water inlet end is filled in end cap and is fixed, will be justified
Cylinder perineurium, which produces water end (W.E.) and fills in produce water end (W.E.) lid glue envelope and cut, makes to produce water flow passage exposing, produces the intake tunnel sealing of water end (W.E.) side.
The hot pressing temperature is 60~220 DEG C, and pressure is 0.05~1.0MPa.
Detailed description of the invention
In order to be easier to understand technical solution of the present invention and beneficial technical effect, by referring to what is be shown in the accompanying drawings
A specific embodiment of the invention is described in detail the present invention.These attached drawings depict only typical implementation of the invention
Mode does not constitute the limitation to protection scope of the present invention, in which:
Fig. 1 is the special-shaped film male and fomale(M&F) partial schematic diagram of an embodiment of wound membrane element according to the present invention.
Fig. 2 is the special-shaped membrane structure partial schematic diagram of an embodiment of wound membrane element according to the present invention.
Fig. 3 is partially schematic before the rolled film of an embodiment of wound membrane element according to the present invention rolls
Figure.
Fig. 4 is the schematic diagram of the first embodiment of the concentrated water outlet of wound membrane element according to the present invention.
Fig. 5 is that the wound membrane element in Fig. 4 has installed intake end cover additional and produced the schematic diagram after water end (W.E.) lid.
Fig. 6 is the schematic diagram of the second embodiment of the concentrated water outlet of wound membrane element according to the present invention.
Fig. 7 is that the wound membrane element in Fig. 6 has installed intake end cover additional and produced the schematic diagram after water end (W.E.) lid.
Fig. 8 is the influent side partial sectional view of an embodiment of wound membrane element according to the present invention.
Fig. 9 is the production water side partial sectional view of an embodiment of wound membrane element according to the present invention.
In the appended drawing reference indicated in Fig. 1-9:
1: film layer；2: non-woven fabrics；3: upper convex surface；4: lower concave plane；5: backboard；6: plate membrane non-woven fabrics；7: plate membrane
Film layer；8: special-shaped film and plate membrane tack line；9: concentrated water outlet；10: producing water end (W.E.) lid；11: intake end cover；12: water inlet flow channel；13
Produce water flow passage；A: water end (W.E.) is produced；B: water inlet end；C: sealing glue position.
Specific embodiment
Referring to Figures 1 and 2, the wound membrane element of embodiment according to the present invention includes special-shaped film, and the abnormity film is by recessed
Convex surface and backboard 5 are constituted, and male and fomale(M&F) includes upper convex surface 3 and lower concave plane 4, and the upper convex surface shown in fig. 1 and 2 is circle
Arc, naturally it is also possible to which using the upper convex surface of other shapes, such as ellipse, but this is without departing from protection model of the invention
It encloses.It is to realize to bond by adhesive, hot melt or ultrasound in Fig. 2, on the downside of backboard 5 and lower concave plane 4, adhesion strength 1~
30MPa, to form cavity between backboard and upper convex surface 3, certain both of which can also using other fixed forms into
Row connection, as long as guaranteeing that they can be stably connected with.Backboard 5 is non-woven fabrics, and male and fomale(M&F) is answering for non-woven fabrics 2 and film layer 1
Close structure.The upside of male and fomale(M&F) is film layer 1, and downside is non-woven fabrics 2, and two kinds of preparation method optional, and one is flat composite membrane warps
Special-shaped mould thermocompression forming is crossed, another kind is that non-woven fabrics is coated with film layer after special-shaped mould thermocompression forming.The film layer 1
Material can select the membrane material generallyd use in the prior art, can be polysulfones, polyether sulfone, Kynoar, chlorinated polyethylene
One or more of blendings of alkene.In order to be bonded securely, the hot pressing temperature is selected as 60~220 DEG C, and pressure is 0.05~
1.0MPa.The length of concave plane 4 is 2.0~5.0mm under the abnormity film, in order to open concentrated water outlet or keep concentrated water runner complete
It is whole.The height of the abnormity film upper convex surface 3 is 0.3~1.8mm, has enough support forces to guarantee to produce water flow passage.It is described
2.5~6.5mm of special-shaped film constitutional repeating unit length.
Referring to Fig. 3, the wound membrane element of embodiment according to the present invention further includes plate membrane, and the plate membrane is by plate membrane
Non-woven fabrics 6 and plate membrane film layer 7 are constituted, and keep special-shaped film and plate membrane corresponding with lower concave plane 4 on special-shaped film backboard 5 back-to-back
Place's bonding is (that is, make on the backboard 5 of the side and the special-shaped film with plate membrane non-woven fabrics 6 of plate diaphragm under
The corresponding part adhesive in concave plane 4) sheet perineurium is formed, they are also to realize bonding by adhesive, hot melt or ultrasound, are glued
1~30MPa of knotting strength, to form production aquaporin, certain both of which can also be attached using other fixed forms, only
Guarantee that they can be stably connected with.Sheet perineurium both ends are respectively water inlet end B and produce water end (W.E.) A (as shown in Figures 4 and 5),
Special-shaped film and plate membrane tack line 8 is shown in FIG. 3.
Referring to Fig. 4 and Fig. 5, the wound membrane element of embodiment according to the present invention further includes concentrated water outlet 9.Producing water end (W.E.)
The side A, close to end sealing glue position C, punch or carry out among adjacent production aquaporin it is trapezoidal cut out with formed concentrated water outlet 9,
To construct complete concentrated water runner.The hole knockout can be ultrasonic wave and cut out using mechanical punching, the mode of cutting out,
It is also possible to computer laser to cut out, the hole shape can be the mixing of round, circular arc rectangle one or two kinds of shape.Institute
The diameter for stating round hole is 1.0~4.0mm；The width of the circular arc rectangular opening be 1.0~4.0mm, length be 3.0~
20.0mm.Of course, it is possible to using other punchings well known in the prior art and cutting method, the size and shape of concentrated water outlet 9
It can also be reasonably selected according to actual design, as long as can guarantee to form complete concentrated water runner.
As shown in Figures 6 and 7, the wound membrane element of embodiment according to the present invention further includes intake end cover 11 and production water end (W.E.)
Lid 10.In the side water inlet end B, sheet perineurium one end is produced into aquaporin glue and seals (as shown in Figure 8), reserves water inlet flow channel 12,
Then sheet perineurium rolls into cylindrical body.Cylindrical body perineurium both ends are trimmed using rotary saw blade, by cylindrical body perineurium water inlet end B
It is fixed to fill in intake end cover 11, cylindrical body perineurium production water end (W.E.) A, which is filled in, to produce 10 glue of water end (W.E.) lid envelope and cut exposes production water flow passage 13
(as shown in Figure 9), intake tunnel is sealed by glue, that is, completes the production of wound membrane element.
Wound membrane element of the invention changes film bag shape, and water inlet flow channel can be provided and produce water by realizing film bag itself
Runner eliminates central tube, water inlet filter and concentrated water filter, has achieved the purpose that reduce rolled film cost.Pass through change simultaneously
Water flow passage mode is produced, film bag length is increased, improves the filling area of rolled film.
The present invention can embody in the form of other are specific, but this is without departing from protection scope of the present invention, originally
The protection scope of invention is defined only by the following claims.
Claims (10)
1. a kind of wound membrane element is rolled by sheet perineurium comprising plate membrane, intake end cover and production water end (W.E.) lid,
Sheet perineurium both ends are respectively water inlet end and produce water end (W.E.), and water inlet end is arranged in water inlet end side after the sheet perineurium roll-forming
Lid produces the setting of water end (W.E.) side and produces water end (W.E.) lid, it is characterised in that: further includes special-shaped film, the abnormity film is by male and fomale(M&F) and backboard structure
At male and fomale(M&F) includes upper convex surface and lower concave plane, and backboard is fixedly connected with recessed planar underside, thus in backboard and upper evagination
Cavity is formed between face, backboard is non-woven fabrics, and male and fomale(M&F) is the composite construction of non-woven fabrics and film layer, and the upside of male and fomale(M&F) is film
Layer, downside is non-woven fabrics, and plate membrane is made of plate membrane non-woven fabrics and plate membrane film layer, and special-shaped film is stacked back-to-back with plate membrane
It is fixedly connected to form the sheet perineurium with lower concave plane corresponding position on special-shaped film backboard, is producing water end (W.E.) side close to end
At glue sealing line, concentrated water outlet, the production aquaporin of the sheet perineurium water inlet end side are formed among adjacent production aquaporin
Sealing, and produce the intake tunnel sealing of water end (W.E.) side.
2. wound membrane element according to claim 1, wherein the film layer of the film layer of the male and fomale(M&F) and the plate membrane
Material is one or more of blendings of polysulfones, polyether sulfone, Kynoar, haloflex.
3. wound membrane element according to claim 1, wherein the connection of the backboard and lower concave plane and special-shaped film with
The connection of plate membrane is to realize bonding, 1~30MPa of adhesion strength by adhesive, hot melt or ultrasound.
4. wound membrane element according to claim 1, wherein the length of concave plane is 2.0~5.0mm under the abnormity film；
The height of the abnormity film upper convex surface is 0.3~1.8mm；2.5~6.5mm of the abnormity film constitutional repeating unit length.
5. wound membrane element described in any one of -4 according to claim 1, wherein the concentrated water outlet is by adjacent
Production aquaporin among punching or carry out trapezoidal cut out.
6. a kind of method for coiling of wound membrane element, this method comprises the following steps:
(1) preparation of special-shaped film: special-shaped film is made of backboard and male and fomale(M&F), and backboard is non-woven fabrics, and male and fomale(M&F) is non-woven fabrics and film
It is fixedly connected on the downside of the composite construction of layer, backboard and male and fomale(M&F), the upside of male and fomale(M&F) is film layer, and downside is non-woven fabrics, male and fomale(M&F)
Including lower concave plane and upper convex surface, preparation method is that flat composite membrane passes through by special-shaped mould thermocompression forming or non-woven fabrics
Film layer is coated with after special-shaped mould thermocompression forming；
(2) sheet perineurium prepare: be stacked special-shaped film back-to-back with plate membrane, on special-shaped film backboard with lower concave plane corresponding position
It is connected and fixed to form the sheet perineurium, sheet perineurium both ends are respectively water inlet end and production water end (W.E.)；
(3) concentrated water is portalled: is being produced from water end (W.E.) side close at end seal tree lace, and concentrated water outlet is formed among adjacent production aquaporin,
Construct complete concentrated water runner；
(4) perineurium rolls: in water inlet end side, sheet perineurium being produced aquaporin sealing, sheet perineurium is then rolled into cylinder
Body；
(5) trimming end seal: cylindrical body perineurium both ends are trimmed, and cylindrical body perineurium water inlet end is filled in end cap and is fixed, cylinder membranes
Beam, which produces water end (W.E.) and fills in produce water end (W.E.) lid glue envelope and cut, makes to produce water flow passage exposing, produces the intake tunnel sealing of water end (W.E.) side.
7. pressure is 0.05~1.0MPa according to the method described in claim 6, wherein the hot pressing temperature is 60~220 DEG C.
8. method according to claim 6 or 7, wherein the material of the film layer of the film layer of the male and fomale(M&F) and the plate membrane
It is one or more of blendings of polysulfones, polyether sulfone, Kynoar, haloflex.
9. method according to claim 6 or 7, wherein the connection of the backboard and lower concave plane and special-shaped film and plate
The connection of film is to realize bonding, 1~30MPa of adhesion strength by adhesive, hot melt or ultrasound.
10. method according to claim 6 or 7, wherein the length of concave plane is 2.0~5.0mm under the abnormity film；Institute
The height for stating special-shaped film upper convex surface is 0.3~1.8mm；2.5~6.5mm of the abnormity film constitutional repeating unit length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611270125.1A CN106669426B (en) | 2016-12-30 | 2016-12-30 | A kind of wound membrane element and its method for coiling |
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| CN201611270125.1A CN106669426B (en) | 2016-12-30 | 2016-12-30 | A kind of wound membrane element and its method for coiling |
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| CN106669426B true CN106669426B (en) | 2019-07-26 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101927831B1 (en) * | 2017-11-15 | 2018-12-11 | 김창용 | Bendable flexible membrane module and method of manufacturing the same |
| CN108993166B (en) * | 2018-08-14 | 2023-11-21 | 三达膜科技（厦门）有限公司 | Anti-pollution formula roll-type membrane water conservancy diversion separates net |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0120264A3 (en) * | 1983-02-24 | 1985-04-17 | Hoechst Aktiengesellschaft | Cross flow module with fine canals |
| CN102574068A (en) * | 2010-04-16 | 2012-07-11 | 旭化成化学株式会社 | Deformed porous hollow fiber membrane, production method of deformed porous hollow fiber membrane, and module, filtration device, and water treatment method in which deformed porous hollow fiber membrane is used |
| CN103170249A (en) * | 2013-04-15 | 2013-06-26 | 杭州自力太阳能科技有限公司 | High-flux low-pressure small spiral-wound membrane element |
| CN205495357U (en) * | 2016-04-15 | 2016-08-24 | 萍乡市博鑫精细陶瓷有限公司 | Filtering surface pottery membrane filter elements is crossed to dysmorphism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55124513A (en) * | 1979-03-17 | 1980-09-25 | Nitto Electric Ind Co Ltd | Membrane separation module |
| JPH02194822A (en) * | 1989-01-23 | 1990-08-01 | Kurita Water Ind Ltd | Spiral-type membrane module |
-
2016
- 2016-12-30 CN CN201611270125.1A patent/CN106669426B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0120264A3 (en) * | 1983-02-24 | 1985-04-17 | Hoechst Aktiengesellschaft | Cross flow module with fine canals |
| CN102574068A (en) * | 2010-04-16 | 2012-07-11 | 旭化成化学株式会社 | Deformed porous hollow fiber membrane, production method of deformed porous hollow fiber membrane, and module, filtration device, and water treatment method in which deformed porous hollow fiber membrane is used |
| CN103170249A (en) * | 2013-04-15 | 2013-06-26 | 杭州自力太阳能科技有限公司 | High-flux low-pressure small spiral-wound membrane element |
| CN205495357U (en) * | 2016-04-15 | 2016-08-24 | 萍乡市博鑫精细陶瓷有限公司 | Filtering surface pottery membrane filter elements is crossed to dysmorphism |
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