CN105711739B - The installation method of the anti-pitching bearing insulation of A type independent liquid cargo tanks - Google Patents
The installation method of the anti-pitching bearing insulation of A type independent liquid cargo tanks Download PDFInfo
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- CN105711739B CN105711739B CN201410723715.XA CN201410723715A CN105711739B CN 105711739 B CN105711739 B CN 105711739B CN 201410723715 A CN201410723715 A CN 201410723715A CN 105711739 B CN105711739 B CN 105711739B
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Abstract
The present invention provides a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank; the anti-pitching bearing includes floor, installation panel, chock groove and chock; the installation method of the insulation is mainly protected each anti-pitching bearing using expanded material; prevent the heat transfer between metal and cause thermal losses, key step of the invention includes the removing surface of cargo tank and anti-pitching bearing, spraying corrosion resistant coating, spray coating foaming material, passes through die cavity and irrigate expanded material, sprayed protection coating.Anti- pitching bearing insulation can be efficiently solved by above-mentioned steps, and the problem of inconvenient is installed, and because the present invention is directed to the design feature of A type independent liquid cargo tanks, simultaneously using spray coating foaming material and perfusion expanded material, therefore insulation effect can effectively be ensured, ensure the tight of insulating mounting, prevent the heat outside cargo tank to be passed to inside cargo tank.
Description
Technical field
The present invention relates to a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank.
Background technology
Liquefied gas carrier is the specialized ships for the Low Temperature Liquid goods such as conveying liquified oil gas, liquefied natural gas, these liquid goods
It is loaded in the cargo tank of liquefied gas carrier, because the temperature of liquid goods is low, insulation is installed in the outer surface of cargo tank.Liquid goods
The main purpose of cabin insulation is to reduce the evaporation capacity of liquid goods to prevent the heat of outside from entering inside cargo tank.
According to the type of loading liquid goods and workplace and other aspects, the cargo tank on liquefied gas carrier is divided into A types, B
Three kinds of type and c-type, wherein A types independent liquid cargo tank is mainly slab construction, there is complete shielding；Type B independent liquid cargo tank is flat
Harden structure is spherical tank formula, there is part time shielding；C-type independent liquid cargo tank is spherical tank formula, without time shielding.According to above-mentioned three kinds of liquid
The architectural characteristic of cargo hold and the difference of performance requirement, it installs the methods of insulation, and there is also difference.Wherein A types independence liquid goods
Cabin is connected by support system with hull, and liquid goods temperature is low in cargo tank, and extraneous temperature is far longer than this temperature, so must
It must be reached insulation with a set of effective insulation system and be prevented that the heat of outside from entering the purpose of cargo tank, reduces liquid goods
The evaporation capacity of liquid in the cabin of cabin；But A type independent liquid cargo tanks are complicated, the supporting construction being connected with cargo tank is numerous, such as pushes up
The anti-rolling bearing in face, the anti-rolling bearing in bottom surface, anti-pitching bearing, vertical bearing etc.；Wherein anti-pitching bearing is arranged on cargo tank
Center line of the bottom surface along beam of hull direction near, anti-pitching bearing is required to allow to produce between hull and cargo tank certain
The relative longitudinal displacement of degree, the hull caused by longitudinal loading is excessive is avoided to be plastically deformed.In summary, not only to solve
The certainly insulation of cargo tank main part, more to focus on the insulation between component and cargo tank such as these bearings.The knot of these components
Structure often interlock by type complexity, structure, and not only installation is inconvenient, and technical requirements are high, careless omission also easily occur and cause hull
General defect, so how preferably installation insulation is that those skilled in the art need what is solved to ask on these supporting members
Topic.
The content of the invention
The technical problem to be solved in the present invention is that providing the A type independent liquid cargo tanks that a kind of step is simple and convenient to operate prevents
The installation method of pitching bearing insulation, to overcome the drawbacks described above of prior art.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：A kind of anti-pitching branch of A types independent liquid cargo tank
The installation method of seat insulation, the anti-pitching bearing are arranged on two center line positions of the cargo tank bottom surface along beam of hull direction
Put, the rear and front end of the anti-pitching bearing is respectively equipped with vertical installation panel, the installation panel by multiple floors with
The bottom surface of cargo tank connects, and is respectively equipped with chock groove on the outside of described two installation panels, chock is equipped with the chock groove,
Characterized in that, the installation method of the insulation comprises the following steps：
First, after cargo tank completes, outer surface and anti-pitching bearing to cargo tank carry out polishing derusting；
2nd, the cargo tank outer surface after polishing and anti-pitching bearing rust prevention by applying liquid material priming paint, after anti-corrosive primer solidification
Removing surface is carried out to cargo tank outer surface, removes water, oil, dust and other pollutants；
3rd, in the outer surface of cargo tank and anti-pitching bearing spraying corrosion resistant coating；
4th, in the anticorrosive coat surface spraying expanded material of cargo tank, the expanded material thickness of spraying is 110mm~135mm,
Material surface to be foamed dries backward expanded material surface spraying protective coating；
The 5th, one die cavity is set on anti-pitching bearing, the die cavity includes frame and bottom plate, and die cavity is provided with perfusion
Mouthful, the through hole to match respectively with the chock of rear and front end is provided with the frame, the die cavity frame is arranged on anti-vertical upward
Shake on bearing, the upper end-face edge of die cavity frame abuts in the expanded material surface sprayed, and the die cavity passes through support member
Positioning, the bottom plate of the die cavity do not contact with floor, installation panel and chock groove；Then sent out by perfusing hole to mould intra-bladder instillation
Foam material；
6th, after full expanded material being irrigated in die cavity, one hour is stood, is then stripped die cavity；
7th, after the die cavity demoulding, to the surface spraying protective coating of the expanded material of dry perfusion, protective coating solidification
Afterwards, the anti-pitching bearing insulation installation of cargo tank.
Preferably, the expanded material in step 4 sprays 4~6 thickness for reaching 110mm~135mm.
Preferably, in step 5, before die cavity is arranged on anti-pitching bearing, lays one layer in die cavity inner surface and take off
Matrix.
Preferably, in step 5, after die cavity is arranged on anti-pitching bearing, in the through hole and chock of die cavity frame
Between packing matcrial.
Preferably, after step 6 terminates, set at the angle seam between the expanded material of spraying and the expanded material of perfusion
Sealant, sealant is set at the angle seam between the expanded material and chock of perfusion.
Preferably, after the demoulding of step 6 die cavity, the expanded material of perfusion pads apart from the front end face of front end chock and rear end
The rear end face at least 5mm of wood.
Preferably, the protective coating thickness in the step 7 is 1mm.
Preferably, the outer surface of the expanded material apart from any one place edge of the floor of anti-pitching bearing at least
50mm。
As described above, a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank of the present invention, has beneficial below
Effect：
The present invention is directed to the design feature of the anti-pitching bearing of A type independent liquid cargo tanks, while uses spray coating foaming material and filling
Note expanded material, therefore can effectively ensure insulation effect, it is ensured that insulating mounting it is tight, prevent the heat outside cargo tank
Inside incoming cargo tank.In addition, the operating process of the present invention is simple, common staff is operable, during without spending a large amount of
Between go to learn.The present invention makes cargo tank, anti-pitching bearing and insulation three passerby one, and organically sealing is overall, efficiently solves
Anti- pitching bearing easily occurs conducting problem and loses the situation of temperature.The present invention is made that contribution for modern liquefied gas carrier field,
There is extensive popularizing value.
Brief description of the drawings
Fig. 1 is cargo tank and schematic diagram after the installation of liquefied gas carrier hull.
Fig. 2 is the schematic diagram that the anti-pitching bearing of cargo tank does not install insulation.
Fig. 3 is the anti-pitching bearing scheme of installation on cargo tank bottom surface.
Fig. 4 is the schematic diagram of the spray coating foaming material of the present invention.
Fig. 5 is the schematic diagram of the perfusion expanded material of the present invention.
Fig. 6 is the schematic diagram that the present invention installs insulation.
Fig. 7 is enlarged drawing at A in Fig. 6.
Fig. 8 is enlarged drawing at B in Fig. 6.
Fig. 9 is direction view at C-C in Fig. 6.
Figure 10 is direction view at D-D in Fig. 6.
In figure：1 cargo tank, 11 anti-pitching bearing
The installation panel of 2 floor 21
The chock of 22 chock groove 23
The expanded material of 31 expanded material 32
The bottom plate of 41 frame 42
The protective coating of 5 support member 61
The sealant of 62 protective coating 7
9 hulls
Embodiment
Structure, ratio, size depicted in Figure of description etc., only to coordinate the content disclosed in specification, with
Understand for those skilled in the art and read, be not limited to the enforceable qualifications of the present invention, therefore do not have technically
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, can be generated not influenceing the present invention
Under effect and the purpose that can reach, all should still it fall in the range of disclosed technology contents can be covered.Meanwhile
Cited such as " on ", " under ", "front", "rear", " centre " term, are merely convenient to the clear of narration in this specification, and
It is not used to limit the enforceable scope of the present invention, its relativeness is altered or modified, in the case where changing technology contents without essence, when
Also it is considered as the enforceable category of the present invention.
A kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank of the present invention, as shown in Figure 1, Figure 2, Figure 3 shows, institute
State anti-pitching bearing 11 and be arranged on position of center line of the bottom surface of cargo tank 1 along beam of hull direction, the anti-pitching bearing
11 rear and front end is respectively equipped with vertical installation panel 21, the bottom that the installation panel 21 passes through multiple floors 2 and cargo tank 1
Face connects, and the outside of described two installation panels 21 is respectively equipped with chock groove 22, chock 23 is provided with the chock groove 22.With reference to
Fig. 1-Figure 10, the installation method of insulation of the present invention comprise the following steps：
First, it is overall to the outer surface of cargo tank 1 and anti-pitching bearing 11 to polish after cargo tank 1 completes
Derusting, because the volume of cargo tank 1 is big, weight is big, it is all cargo tank part of the whole that above-mentioned cargo tank 1, which completes,
Then each several part is lifted into progress block splicing in hull 9.
Cargo tank outer surface and the rust prevention by applying liquid material priming paint of anti-pitching bearing 11 after polishing, the anti-corrosive primer is iron oxide red
Or the material such as aluminium powder, preferable in the present embodiment, the anti-corrosive primer is inorganic silicon yellow zinc chromate primer paint.To liquid after anti-corrosive primer solidification
Cargo hold outer surface and anti-pitching bearing 11 carry out removing surface, remove water, oil, dust and other dirts on anti-corrosive primer surface
Contaminate thing；After cleaning is good, in the outer surface of cargo tank 1 and the anti-spraying corrosion resistant coating of pitching bearing 11.The anticorrosive coat not only can be with
Prevent water or moisture from entering follow-up expanded material, and because the tensile strength of this anti-corrosion layer material is higher than expanded material
The tensile strength being joined directly together with cargo tank 1, therefore the low temperature steel surface of cargo tank 1 and the bonding feelings of expanded material can also be improved
Condition.The anti-corrosion layer material is inorganic zinc primer.
After anticorrosive coat solidification, as shown in figure 4, the spray coating foaming material 31 on the anticorrosive coat of cargo tank outer surface, spraying
The thickness of expanded material 31 is 110mm~135mm, and preferable coating thickness is 120mm.In order that the foaming of cargo tank outer surface
Material thickness is in above-mentioned size range, so expanded material 31 sprays several times, is examined at any time in order to the staff of spraying
The thickness of spraying is looked into, reduces error, ensure coating quality, the staff of spraying can check foaming by elongated iron pin
The thickness of material.Show that spraying can reach 110mm~135mm thickness 4~6 times according to actual tests operation, and be
Spray coating operations are completed with the minimum time on the premise of guarantee coating quality.Also to ensure that spraying is all upper every time in spraying
Next layer is sprayed again after one layer of expanded material surface cure, is prevented because expanded material 31 influences insulated heat effect without solidification
Fruit.After the spraying of expanded material 31 terminates, after the dry tack free of foam material 31 pending, protected to the surface spraying of expanded material 31
Coating 61 is protected, the protective coating 61 is to play a part of mechanical protection and waterproof, the thickness at least 1mm of protective coating 61, is led to
Overprotection coating 61 can preferably ensure overall service behaviour.Protective coating 61 sprays several times, and the thickness once sprayed exists
0.5mm or so.
According to above it will be appreciated that, cargo tank 1 is the installation insulated in segmentation, then again block splice, block splicing
Typically by the way of welding, welding can produce high temperature, and high temperature easily causes the thawing of expanded material, burning, or even causes fire
Calamity, so in order to prevent the generation of this dangerous situation, the position of the expanded material 31 of spraying and have welding, thermal cutting
Position Deng operation will reserve a segment distance, and its distance will at least have 500mm, and then ensure that heat does not interfere with expanded material
31。
After completing above-mentioned work, with reference to Fig. 3, Fig. 4, Fig. 5, Fig. 9, set on anti-pitching bearing 11 and make a die cavity,
The die cavity includes frame 41 and bottom plate 42, and shown die cavity can accommodate the whole anti-pitching bearing including each floor 2
Structure, it is ensured that the tightness of the insulating mounting of whole anti-pitching bearing 11.Die cavity is provided with perfusing hole, and perfusing hole is generally located on
The marginal position of frame 41, to prevent the expanded material 32 subsequently irrigated from revealing；Be provided with the frame 41 respectively with chock 23
The through hole to match, the die cavity frame 41 are arranged on anti-pitching bearing 11 upward, and the upper end-face edge of die cavity frame 41 reclines
On the surface of expanded material 32 sprayed, the die cavity by support member 5 support position, the support member 5 be oil cylinder or
Jack etc..After on die cavity installation and anti-pitching bearing 11, filled between the through hole and chock 23 of die cavity frame 41 close
Closure material, prevent expanded material 32 that may be present from revealing.When installing die cavity, the bottom plate 42 of die cavity not with floor 2, mounting surface
Plate 21 and chock groove 22 contact, and its purpose is to ensure the tightness of insulation, prevent floor 2, installation panel 21 and chock groove
22 occur heat transfer with extraneous.
After die cavity is had good positioning, by perfusing hole to mould intra-bladder instillation expanded material 32.In this step, for the ease of mould
Chamber is in the curing and demolding of expanded material 3, and before the die cavity is arranged on anti-rolling bearing 11, one layer is laid in die cavity inner surface
Release sheet, and then facilitate die cavity to be stripped.One hour is stood after die cavity is filled into expanded material 3, the expanded material allowed in die cavity is consolidated
Change, expanded material 32 removes support member 5 after solidifying, and die cavity is stripped, as Figure 6-Figure 8, after the die cavity demoulding, in spraying
Sealant 7 is set at the angle seam between expanded material 31 and the expanded material 32 of perfusion, in the expanded material 32 and chock of perfusion
Angle seam between 23 is also provided with sealant 7, is further ensured that insulation effect.Then to dry perfusion expanded material 32 table
Face sprayed protection coating 62, the thickness at least 1mm of protective coating 62, protective coating 62 spray several times, and the thickness once sprayed exists
0.5mm or so.The structure and size of chock 23 of rear and front end are identical, as shown in figure 8, to ensure the foaming of perfusion after the die cavity demoulding
Material 32 allows chock 23 to protrude from foaming apart from the front end face of front end chock 23 and the rear end face at least 5mm of rear end chock 23
The surface of material 32 at least 5mm.In addition, the as shown in figure 8, appearance of expanded material 32 of the lower surface distance perfusion of installation panel 21
The distance in face is at least 20mm, further functions as insulation effect.
In the implementation process of the present invention, with reference to shown in Fig. 3, Fig. 7, Fig. 8 and Figure 10, the expanded material 31 that either sprays
Or perfusion expanded material 32, after hardening its outer surface apart from any one place edge of the floor 2 of anti-pitching bearing 11 extremely
Few 50mm, to ensure insulation effect.
Heretofore described expanded material 31,32 is polyurethane material, and the spray coating foaming of polyurethane material is a kind of ratio
It is a kind of reliable and durable insulation by the application in terms of a variety of tests and low-temperature insulation compared with the heat preserving mode of high praise
Method.In addition, polyurethane foam material has in itself, thermal conductivity factor is low, rate of closed hole is high and some physics of good mechanical property are special
Sign, and elastic properties of materials is preferable, the deformation of cargo tank caused by can adapt to temperature difference.
The material of heretofore described protective coating 61,62 is polyalcohol or isocyanide amine ester material.
In summary, a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank of the present invention, can facilitate A types
Insulating mounting at the anti-pitching bearing of independent liquid cargo tank.So the present invention effectively overcomes and more of the prior art actually asked
Topic is so as to having very high value and using meaning.
The principle and its effect of the above-mentioned embodiment only illustrative present invention, not for the limitation present invention.This hair
It is bright to also have many aspects to be improved on the premise of without prejudice to overall thought, all can be for those skilled in the art
Without prejudice under the spirit and scope of the present invention, modifications and changes can be carried out to above-described embodiment.Therefore, art such as
Middle tool usually intellectual without departing from disclosed spirit and all equivalent modifications for being completed under technological thought or
Change, should be covered by the claim of the present invention.
Claims (8)
- A kind of 1. installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank, it is characterised in that the anti-pitching bearing (11) Installed in position of center line of the cargo tank (1) bottom surface along beam of hull direction, front and rear the two of the anti-pitching bearing (11) End is respectively equipped with vertical installation panel (21), the bottom surface that the installation panel (21) passes through multiple floors (2) and cargo tank (1) Connect, be respectively equipped with chock groove (22) on the outside of the installation panel (21), chock (23) is equipped with the chock groove (22), The installation method of the insulation comprises the following steps：First, after cargo tank (1) completes, outer surface and anti-pitching bearing (11) to cargo tank (1) carry out polishing and removed Rust；2nd, the cargo tank outer surface after polishing and anti-pitching bearing (11) rust prevention by applying liquid material priming paint, after anti-corrosive primer solidification Removing surface is carried out to cargo tank outer surface, removes water, oil, dust and other pollutants；3rd, in the outer surface of cargo tank (1) and anti-pitching bearing (11) spraying corrosion resistant coating；4th, in the anticorrosive coat surface spraying expanded material (31) of cargo tank (1), expanded material (31) thickness of spraying is 110mm ~135mm, to expanded material (31) surface spraying protective coating (61) after foam material (31) dry tack free pending；The 5th, one die cavity is set on anti-pitching bearing (11), the die cavity includes frame (41) and bottom plate (42), set on die cavity There is perfusing hole, the through hole to match respectively with the chock (23) of rear and front end, the die cavity frame are provided with the frame (41) (41) it is arranged on upward on anti-pitching bearing (11), the upper end-face edge of die cavity frame (41) abuts in the foaming material sprayed Expect (31) surface, the die cavity is positioned by support member (5), the bottom plate (42) of the die cavity not with floor (2), installation panel (21) contacted with chock groove (22)；Then by perfusing hole to mould intra-bladder instillation expanded material (32)；6th, after full expanded material (32) being irrigated in die cavity, one hour is stood, is then stripped die cavity；7th, after the die cavity demoulding, to the surface spraying protective coating (62) of the expanded material (32) of dry perfusion, protective coating (62) after solidifying, anti-pitching bearing (11) insulating mounting of cargo tank (1) is completed.
- 2. a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank according to claim 1, its feature exist In：Expanded material (31) in step 4 sprays 4~6 thickness for reaching 110mm~135mm.
- 3. a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank according to claim 1, its feature exist In：In step 5, before die cavity is arranged on anti-pitching bearing (11), one layer of release sheet is laid in die cavity inner surface.
- 4. a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank according to claim 1, its feature exist In：In step 5, after die cavity is arranged on anti-pitching bearing (11), in the through hole and chock (23) of die cavity frame (41) Between packing matcrial.
- 5. a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank according to claim 1, its feature exist In：After step 6 terminates, sealing is set at the angle seam between the expanded material (31) of spraying and the expanded material (32) of perfusion Agent (7), sealant (7) is set at the angle seam between the expanded material (32) and chock (23) of perfusion.
- 6. a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank according to claim 1, its feature exist In：After the demoulding of step 6 die cavity, the front end face and rear end chock of the expanded material (32) of perfusion apart from front end chock (23) (23) right side at least 5mm.
- 7. a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank according to claim 1, its feature exist In：Protective coating (62) thickness in the step 7 is 1mm.
- 8. a kind of installation method of the anti-pitching bearing insulation of A types independent liquid cargo tank according to claim 1, its feature exist In：Any one place edge of floor (2) of the outer surface of the expanded material (31,32) apart from anti-pitching bearing (11) is at least 50mm。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410723715.XA CN105711739B (en) | 2014-12-03 | 2014-12-03 | The installation method of the anti-pitching bearing insulation of A type independent liquid cargo tanks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723715.XA CN105711739B (en) | 2014-12-03 | 2014-12-03 | The installation method of the anti-pitching bearing insulation of A type independent liquid cargo tanks |
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| CN105711739B true CN105711739B (en) | 2017-12-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442408A (en) * | 2010-10-09 | 2012-05-09 | 江南造船(集团)有限责任公司 | Vertical supporting structure for cargo tank and inboard bottom of full-refrigerated liquefied gas carrier and mounting method of vertical supporting structure |
| CN103998334A (en) * | 2011-12-16 | 2014-08-20 | 三星重工业株式会社 | Auxiliary secondary barrier, liquefied natural gas storage tank including same and method for manufacturing the liquefied natural gas storage tank |
| CN104100833A (en) * | 2013-04-12 | 2014-10-15 | 气体运输技术公司 | Waterproof membrane and process for its manufacture |
| CN104160202A (en) * | 2012-01-09 | 2014-11-19 | 气体运输技术公司 | Sealed insulating vessel provided with a primary retaining means |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2987100B1 (en) * | 2012-02-20 | 2015-04-10 | Gaztransp Et Technigaz | CALORIFYING ELEMENTS FOR SEALED AND THERMALLY INSULATED TANKS |
-
2014
- 2014-12-03 CN CN201410723715.XA patent/CN105711739B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442408A (en) * | 2010-10-09 | 2012-05-09 | 江南造船(集团)有限责任公司 | Vertical supporting structure for cargo tank and inboard bottom of full-refrigerated liquefied gas carrier and mounting method of vertical supporting structure |
| CN103998334A (en) * | 2011-12-16 | 2014-08-20 | 三星重工业株式会社 | Auxiliary secondary barrier, liquefied natural gas storage tank including same and method for manufacturing the liquefied natural gas storage tank |
| CN104160202A (en) * | 2012-01-09 | 2014-11-19 | 气体运输技术公司 | Sealed insulating vessel provided with a primary retaining means |
| CN104100833A (en) * | 2013-04-12 | 2014-10-15 | 气体运输技术公司 | Waterproof membrane and process for its manufacture |
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