CN112228556B - Sealing structure for metal filter bag - Google Patents
Sealing structure for metal filter bag Download PDFInfo
- Publication number
- CN112228556B CN112228556B CN202011082359.XA CN202011082359A CN112228556B CN 112228556 B CN112228556 B CN 112228556B CN 202011082359 A CN202011082359 A CN 202011082359A CN 112228556 B CN112228556 B CN 112228556B
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- Prior art keywords
- wall
- sealing
- sealing ring
- flange
- filter bag
- 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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- 238000007789 sealing Methods 0.000 title claims abstract description 128
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 abstract 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 10
- 235000017491 Bambusa tulda Nutrition 0.000 description 10
- 241001330002 Bambuseae Species 0.000 description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 10
- 239000011425 bamboo Substances 0.000 description 10
- 238000003825 pressing Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
Abstract
The invention relates to the technical field of sealing structures, and discloses a sealing structure for a metal filter bag, which comprises a pore plate, a sealing ring, a flange and a sheath cylinder, wherein the pore plate is provided with a through hole, the sheath cylinder is penetrated and connected into the through hole, the sealing ring is positioned between the hole wall of the through hole and the outer wall of the sheath cylinder, and the flange is sleeved on the outer wall of the sheath cylinder and is abutted against the top surface of the sealing ring; the diameter of the inner wall of sealing washer from top to bottom diminishes gradually, the diameter of the outer wall of a restrictive sleeve diminishes gradually from top to bottom, the inner wall of sealing washer with the outer wall looks adaptation of a restrictive sleeve. According to the invention, the self gravity of the sheath cylinder and the flange is utilized, so that the sealing ring is deformed, the contact area of the sheath cylinder and the sealing ring is increased, and a better sealing effect can be provided.
Description
Technical Field
The invention relates to the technical field of sealing structures, in particular to a sealing structure for a metal filter bag.
Background
Referring to fig. 1 and 2, a metal filter bag is generally disposed on a perforated plate 101, the metal filter bag has a flange 102 and a filter bag, one end of the filter bag having an opening is connected to the flange 102, the flange 102 is disposed on one side of the perforated plate 101, and the filter bag is disposed on a through hole of the perforated plate 101. A sealing ring 103 is arranged between the flange 102 and the orifice plate 101, a pressing plate 104 is arranged on the flange 102, the pressing plate 104 is used for pressing the flange 102 tightly, bolts 105 are arranged on the pressing plate 104, the compression degree of the flange 102 can be adjusted by the bolts 105, and when the flange 102 is compressed, the sealing ring 103 can also be compressed and deformed, so that sealing is realized.
However, because a plurality of through holes are arranged on the pore plate 101, each through hole is provided with a metal filter bag, the bolts 105 are adjusted one by one when the compression degree of the pressure plate 104 is adjusted, the workload is high, and the problem that the compression degree of the flange 102 is not uniform easily occurs, so that the sealing effect among the flange 102, the sealing ring 103 and the pore plate 101 is poor, and the filtering effect is poor.
Disclosure of Invention
The purpose of the invention is: the sealing structure for the metal filter bag has a good self-sealing effect.
In order to achieve the purpose, the invention provides a sealing structure for a metal filter bag, which comprises a pore plate, a sealing ring, a flange and a sheath cylinder, wherein the pore plate is provided with a through hole, the sheath cylinder is penetrated and connected in the through hole, the sealing ring is positioned between the hole wall of the through hole and the outer wall of the sheath cylinder, and the flange is sleeved on the outer wall of the sheath cylinder and is abutted against the top surface of the sealing ring; the diameter of the inner wall of the sealing ring is gradually reduced from top to bottom, the diameter of the outer wall of the sheathing cylinder is gradually reduced from top to bottom, and the inner wall of the sealing ring is matched with the outer wall of the sheathing cylinder.
Optionally, the central axis of the sealing ring and the central axis of the sheath cylinder are on the same straight line.
Optionally, a first taper angle α is formed between the inner wall of the sealing ring and the horizontal plane, a second taper angle β is formed between the outer wall of the sheath cylinder and the horizontal plane, and the first taper angle α is smaller than the second taper angle β.
Optionally, the angular difference between the first taper angle α and the second taper angle β is 2 °.
Optionally, the first taper angle α is 78 ° and the second taper angle β is 80 °.
Optionally, the protective sleeve comprises a connecting portion and a sealing portion which are arranged from top to bottom, the flange is sleeved on the outer wall of the connecting portion, and the sealing ring is sleeved on the outer wall of the sealing portion.
Optionally, the sealing portion is in a truncated cone shape, the connecting portion is in a cylindrical shape, and the sealing portion is coaxial with the connecting portion.
Optionally, the sheath cylinder further includes an extension portion, the extension portion is disposed at one end of the sealing portion far away from the connection portion, and the extension portion is coaxial with the sealing portion.
Optionally, a chamfer is arranged on the outer wall of the flange.
Optionally, the inner wall of the sealing ring and the outer wall of the sheath cylinder form a contact surface, and a gap value between the inner wall of the sealing ring and the outer wall of the sheath cylinder is 1-1.5mm.
Compared with the prior art, the sealing structure for the metal filter bag has the beneficial effects that:
the sealing structure for the metal filter bag comprises a pore plate, a sealing ring, a flange and a sheath cylinder, wherein the pore plate is provided with a through hole, the sheath cylinder is connected in the through hole in a penetrating manner, the sealing ring is positioned between the hole wall of the through hole and the outer wall of the sheath cylinder, and the flange is sleeved on the outer wall of the sheath cylinder and is abutted against the top surface of the sealing ring; the diameter of the inner wall of the sealing ring is gradually reduced from top to bottom, the diameter of the outer wall of the sheathing cylinder is gradually reduced from top to bottom, and the inner wall of the sealing ring is matched with the outer wall of the sheathing cylinder. A sheathing section of thick bamboo is hugged closely with the sealing washer, a sheathing section of thick bamboo has the gradient with the contact surface of sealing washer, because metal filter bag's dead weight acts on the sealing washer through flange and sheathing section of thick bamboo, the sealing washer can receive the packing force of two axial directions of axial and perpendicular to, combine the deformation of sealing washer self, the area of contact of increase sheathing section of thick bamboo and sealing washer, can provide better sealed effect, and the dead weight when flange and sheathing section of thick bamboo is big more, perhaps act on flange and sheathing section of thick bamboo and both receive with the same external force of action of gravity direction, can also further improve sealed effect.
Drawings
Fig. 1 is a schematic view of a prior art structure.
Fig. 2 is a schematic view of another angle structure of the prior art.
Fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a seal ring according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a sheath cartridge according to an embodiment of the present invention.
In FIGS. 1-2, 101, an orifice plate; 102. a flange; 103. a seal ring; 104. pressing a plate; 105. and (4) bolts.
In FIGS. 3-5, 1, the orifice plate; 2. a seal ring; 3. a flange; 4. a sheathing tube; 11. a through hole; 41. a connecting portion; 42. a sealing part; 43. an extension portion.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred apparatus or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 3-5, a sealing structure for a metal filter bag according to a preferred embodiment of the present invention includes a hole plate 1, a sealing ring 2, a flange 3 and a sheath cylinder 4, wherein the hole plate 1 is provided with a through hole 11, the sheath cylinder 4 is inserted into the through hole 11, the sealing ring 2 is located between a hole wall of the through hole 11 and an outer wall of the sheath cylinder 4, and the flange 3 is sleeved on the outer wall of the sheath cylinder 4 and abuts against a top surface of the sealing ring 2; the diameter of the inner wall of the sealing ring 2 is gradually reduced from top to bottom, the diameter of the outer wall of the sheath cylinder 4 is gradually reduced from top to bottom, and the inner wall of the sealing ring 2 is matched with the outer wall of the sheath cylinder 4. The filter bag is installed on flange and a sheath section of thick bamboo, is equipped with horizontal muscle and perpendicular muscle on the filter bag, and the horizontal muscle fixed connection of filter bag is on the flange, and the perpendicular muscle fixed connection of filter bag is at the inner wall of a sheath section of thick bamboo, and the perpendicular muscle top of filter bag is still fixed connection on the flange. The filter bag is also made of metal. The flange and the sheath cylinder can be integrally formed and can also be connected together in a welding mode and the like. The orifice plate 1 has spaces at both sides thereof to provide conditions for it to be able to perform a filtering function. The setting of flange 3 can restrict the position of a sheath section of thick bamboo 4 to increase the pressure that sealing washer 2 received, avoid appearing the gap between sealing washer 2 and the orifice plate 1 and between sealing washer 2 and the flange 3, guarantee sealed effect. Set up a protecting sleeve 4 and hug closely with sealing washer 2, and protecting sleeve 4 has the gradient with the contact surface of sealing washer 2, this slope mode is still the top and is greater than the form of below, the structure of setting is acted on sealing washer 2 through the dead weight of flange 3 and a protecting sleeve 4, sealing washer 2 pressurized takes place to deform and produces the reaction force that acts on flange 3 and a protecting sleeve 4 simultaneously, the direction of the reaction force that a protecting sleeve 4 received is the perpendicular to axial direction, and the direction of the reaction force that flange 3 received is the opposite direction of gravity, combine the deformation of sealing washer 2 self, can all provide better sealed effect on the contact surface with flange 3 and a protecting sleeve 4. In addition, when the dead weight of flange 3 and a protecting sleeve 4 is big more, or act on flange 3 and a protecting sleeve 4 and both receive with the gravity action direction the same external force when, the deformation degree that sealing washer 2 took place increases, can produce bigger reaction force moreover to the packing force that the increase protecting sleeve 4 received, the area increase of the contact surface of sealing washer 2 and a protecting sleeve 4, and then further improve sealed effect. After the filter bag is installed, the filter bag is equivalent to the external force, and the sealing effect is further improved.
In the prior art, referring to fig. 1 and 2, the flange 102 is located at one side of the well plate 101, and the filter bag is disposed on the through hole of the well plate 101. A sealing ring 103 is arranged between the flange 102 and the orifice plate 101, a pressing plate 104 is arranged on the flange 102, the pressing plate 104 is used for pressing the flange 102 tightly, bolts 105 are arranged on the pressing plate 104, the compression degree of the flange 102 can be adjusted by the bolts 105, and when the flange 102 is compressed, the sealing ring 103 is compressed and deformed to seal. Because set up a plurality of through-holes on orifice plate 101, a metal filter bag is all installed to every through-hole, this just leads to adjusting bolt 105 one by one when adjusting the clamp plate 104 degree of compressing tightly, and work load is big, and the inhomogeneous problem of the pressurized degree of flange 102 easily appears moreover to lead to the sealed effect between flange 102, sealing washer 103 and the orifice plate 101 poor, and then lead to the filter effect poor.
Compared with the prior art, the embodiment utilizes the dead weight of the sheath cylinder 4 and the flange 3, the deformation of the sealing ring 2 is uniform, and the problem of non-uniformity of the compression degree in the prior art is avoided, so that a better sealing effect is achieved.
In the present embodiment, the center axis of the seal ring 2 is aligned with the center axis of the jacket tube 4. Set up like this, a sheath section of thick bamboo 4 can be through its self dead weight, fixes a position and compresses tightly sealing washer 2 automatically in sealing washer 2, reduces staff's work load to improve the accuracy nature of installation.
A first taper angle alpha is formed between the inner wall of the sealing ring 2 and the horizontal plane, a second taper angle beta is formed between the outer wall of the protecting sleeve 4 and the horizontal plane, and the first taper angle alpha is smaller than the second taper angle beta.
The sealing ring 2 is deformed under pressure, so that the sealing ring 2 can be easily matched with the sheath cylinder 4 to increase the contact area of the sealing ring 2 and the sheath cylinder 4, and a better sealing effect can be achieved. In the present embodiment, the angular difference between the first taper angle α and the second taper angle β is 2 °. The value is set, small-area contact that the contact surface of the sealing ring 2 and the protecting sleeve 4 is close to line contact is conveniently obtained, and the gap value between the inner wall of the sealing ring 2 and the outer wall of the protecting sleeve 4 is 1-1.5mm, so that the sealing requirement can be met. The first taper angle alpha is 78 deg., and the second taper angle beta is 80 deg.. In other embodiments, this may be done as desired.
The shield tube 4 includes a connecting portion 41 and a sealing portion 42 which are vertically provided, the flange 3 is fitted to an outer wall of the connecting portion 41, and the seal ring 2 is fitted to an outer wall of the sealing portion 42. The connecting portion 41 is used for connecting the flange 3, the connecting portion 41 and the flange 3 can be fixedly connected, the sealing portion 42 is used for interacting with the sealing ring 2 to achieve sealing, and the sealing portion 42 is movably connected with the sealing ring 2. The sealing portion 42 has a truncated conical shape, the connecting portion 41 has a cylindrical shape, and the sealing portion 42 is coaxial with the connecting portion 41. The shape of the sealing portion 42 and the connecting portion 41 is set in this way, which is in accordance with design habits and facilitates production and processing. The sheath cylinder 4 further includes an extending portion 43, the extending portion 43 is disposed at an end of the sealing portion 42 far away from the connecting portion 41, and the extending portion 43 is coaxial with the sealing portion 42. The extension 43 can add a self weight to the jacket tube 4, thereby improving a sealing effect of the sealing structure.
The outer wall of the flange 3 is provided with a chamfer. When the installation, staff direct contact flange 3 sets up the chamfer and avoids the edge of flange 3 sharp, avoids injury staff.
The working process of the invention is as follows: the protecting sleeve 4 penetrates through the inner wall of the sealing ring 2, the flange 3 presses the top of the sealing ring 2, and the flange 3 and the protecting sleeve 4 are positioned and pressed on the sealing ring 2 by utilizing the self gravity of the flange 3 and the protecting sleeve 4.
In summary, the embodiment of the present invention provides a sealing structure for a metal filter bag, in which the sheath cylinder 4 and the flange 3 deform the sealing ring 2 by their own gravity, and can receive two acting forces in the axial direction and the direction perpendicular to the axial direction, and the deformation of the sealing ring 2 is combined to increase the contact area between the sheath cylinder 4 and the sealing ring 2, so as to provide a better sealing effect.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. A sealing structure for a metal filter bag is characterized by comprising a pore plate, a sealing ring, a flange and a sheath cylinder, wherein the pore plate is provided with a through hole, the sheath cylinder is connected in the through hole in a penetrating manner, the sealing ring is positioned between the hole wall of the through hole and the outer wall of the sheath cylinder, and the flange is sleeved on the outer wall of the sheath cylinder and is abutted against the top surface of the sealing ring;
the diameter of the inner wall of the sealing ring is gradually reduced from top to bottom, the diameter of the outer wall of the sheathing cylinder is gradually reduced from top to bottom, and the inner wall of the sealing ring is matched with the outer wall of the sheathing cylinder;
a first taper angle alpha is formed between the inner wall of the sealing ring and the horizontal plane, a second taper angle beta is formed between the outer wall of the protecting sleeve and the horizontal plane, and the first taper angle alpha is smaller than the second taper angle beta;
the angular difference between the first taper angle a and the second taper angle β is 2 °;
the first taper angle α is 78 ° and the second taper angle β is 80 °.
2. The sealing structure for the metal filter bag according to claim 1, wherein a central axis of the sealing ring is collinear with a central axis of the sheathing tube.
3. The sealing structure for the metal filter bag according to claim 2, wherein the sheath cylinder comprises a connecting portion and a sealing portion which are vertically arranged, the flange is sleeved on the outer wall of the connecting portion, and the sealing ring is sleeved on the outer wall of the sealing portion.
4. The sealing structure for the metal filter bag according to claim 3, wherein the sealing portion has a truncated cone shape, the connecting portion has a cylindrical shape, and the sealing portion is coaxial with the connecting portion.
5. The sealing structure for the metal filter bag according to claim 3, wherein the sheath cylinder further comprises an extension portion disposed at an end of the sealing portion remote from the connecting portion, the extension portion being coaxial with the sealing portion.
6. The sealing structure for the metal filter bag according to claim 1, wherein the outer wall of the flange is provided with a chamfer.
7. The sealing structure for the metal filter bag according to claim 1, wherein a gap value between the inner wall of the sealing ring and the outer wall of the sheathing tube is 1-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011082359.XA CN112228556B (en) | 2020-10-12 | 2020-10-12 | Sealing structure for metal filter bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011082359.XA CN112228556B (en) | 2020-10-12 | 2020-10-12 | Sealing structure for metal filter bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112228556A CN112228556A (en) | 2021-01-15 |
| CN112228556B true CN112228556B (en) | 2023-01-06 |
Family
ID=74112546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011082359.XA Active CN112228556B (en) | 2020-10-12 | 2020-10-12 | Sealing structure for metal filter bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112228556B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3409828A1 (en) * | 1984-03-17 | 1985-09-19 | Brita Wasserfilter GmbH, 6204 Taunusstein | INSERT FOR A WATER PURIFICATION DEVICE |
| CN104633114A (en) * | 2015-01-30 | 2015-05-20 | 成都易态科技有限公司 | Sealing device for head of gas filter element |
| CN206778060U (en) * | 2017-04-01 | 2017-12-22 | 成都易态科技有限公司 | For the sealing structure between filter core and orifice plate |
-
2020
- 2020-10-12 CN CN202011082359.XA patent/CN112228556B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3409828A1 (en) * | 1984-03-17 | 1985-09-19 | Brita Wasserfilter GmbH, 6204 Taunusstein | INSERT FOR A WATER PURIFICATION DEVICE |
| CN104633114A (en) * | 2015-01-30 | 2015-05-20 | 成都易态科技有限公司 | Sealing device for head of gas filter element |
| CN206778060U (en) * | 2017-04-01 | 2017-12-22 | 成都易态科技有限公司 | For the sealing structure between filter core and orifice plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112228556A (en) | 2021-01-15 |
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Address after: 710065 7th floor, block B, Huajing Plaza, No.20, Fenghui South Road, high tech Zone, Xi'an City, Shaanxi Province Patentee after: Xi'an Longjing Environmental Protection Technology Co.,Ltd. Address before: 710065 7th floor, block B, Huajing Plaza, No.20, Fenghui South Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: XI'AN XIKUANG ENVIRONMENTAL PROTECTION Co.,Ltd. |
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