CN109402831A - A kind of hollow sandwich fabric with profile modeling function - Google Patents
A kind of hollow sandwich fabric with profile modeling function Download PDFInfo
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- CN109402831A CN109402831A CN201811546679.9A CN201811546679A CN109402831A CN 109402831 A CN109402831 A CN 109402831A CN 201811546679 A CN201811546679 A CN 201811546679A CN 109402831 A CN109402831 A CN 109402831A
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- fabric
- internal layer
- hollow sandwich
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- weft yarn
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Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0035—Protective fabrics
- D03D1/0058—Electromagnetic radiation resistant
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
- D10B2101/06—Glass
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Laminated Bodies (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a kind of hollow sandwich fabric with profile modeling function has an axis, and relative to the axis, which is in single-curvature；The hollow sandwich fabric has outer fabric and internal layer fabric, internal layer fabric and outer fabric are in unsymmetric structure, the outer fabric is knitted by outer layer warp thread and outer layer weft yarn cross, the internal layer fabric is knitted by internal layer warp thread and internal layer weft yarn cross, and outer layer weft yarn and internal layer weft yarn extend along the direction for being parallel to the axis；Suede warp is provided between outer fabric and internal layer fabric, which is interweaved with internal layer fabric and outer fabric, and the suede is passed through perpendicular to the axis；The suede is through forming intermediate core layer；The length of run of outer fabric is greater than the length of run of internal layer fabric.The present invention is single curvature structures, and ectonexine fabric is asymmetric mechanism, and fill yarn ends are different, and ectonexine warp thread is made to be intended to identical curvature, and ectonexine fabric internal stress is roughly the same, have more stable structure.
Description
Technical field
The invention belongs to extraordinary woven fabric structure technical fields, and in particular to a kind of hollow sandwich with profile modeling function is knitted
Object.
Background technique
With the fast development of radar, antenna, structure type is varied, and size is also increasing, the protection of antenna
Cover, shielding case etc. are no longer traditional planar structures, start to develop towards directions such as arc, spherical shapes.As protective cover with
And the fabric of the precast body of the safeguard structures such as shielding case is also required to develop towards directions such as arc, revolving bodies.
Referring to Fig. 1, currently, the composite material of arc conventional fabrication method are as follows: make smooth precast body first
Fabric, the fabric have the first outboard structure 110, the second outboard structure 120 and tie the first outboard structure and the second outside
The intermediate structure 130 that structure links together, the first outboard structure therein is identical as the institutional framework of the second outboard structure, is needing
When wanting, which is cut into fritter, the deformation of arc is realized using the deflection of fabric itself.This technique is formed
Composite material defect it is obvious, fabric stitching portion structural weak, composite material entirety uniformity is poor, can only realize that structure is simple
Fabric splicing, structure is complicated for hollow fabric, can not use such technological operation.The antenna house prepared using this kind of technique
Fiber volume fraction is high, wave transmission rate is poor；Composite material uniformity is poor, influence wave transparent uniformly and stability.
Hollow sandwich fabric revolving body weaving technology has appeared in the newspapers, and patent (CN201410707112.0) elaborates in one kind
Empty sandwich revolving body fabric and its application, this kind of structure ectonexine fabric radical is consistent, fabric face layer length is consistent, mainly with sacrificial
The standing of domestic animal fabric is cost, realizes the transition with curvature, and the batch consistency of composite material prepared by this kind of mode is poor,
It is very big on the wave transparent of product, shielding properties influence, and hollow fabric design feature determines, fabric only has suede through vertical state
Under, the performance of composite material can just access performance, otherwise performance loss is larger.
Antenna house requires wave transparent to have excellent performance, electromagnetic penetration rate is strong, and shielding case requires isolation signal transmission, reaches stealth
Can, the two general character requires the mode that fabric fibre volume content is low, high consistency is good, lot stability is good therefore traditional
It can no longer meet the requirement of antenna protection cover, shielding case of new generation.
Summary of the invention
To solve the band series of products such as curvature antenna house, shielding case during the preparation process, fiber volume fraction height, height one
The defects of cause property poor, fabric uniformity, the present invention provides a kind of hollow sandwich fabric, specific technical solution are as follows:
A kind of hollow sandwich fabric with profile modeling function has an axis, and relative to the axis, which is knitted
Object is in single-curvature；The hollow sandwich fabric has outer fabric and internal layer fabric, and internal layer fabric and outer fabric are in unsymmetrical knot
Structure, the outer fabric are knitted by outer layer warp thread and outer layer weft yarn cross, and the internal layer fabric is by internal layer warp thread and internal layer weft yarn phase
It is interwoven, outer layer weft yarn and internal layer weft yarn extend along the direction for being parallel to the axis；In outer fabric and internal layer fabric
Between be provided with suede warp, the suede with internal layer fabric and outer fabric through being interweaved, and the suede is passed through perpendicular to the axis；The suede
Through forming intermediate core layer；The length of run of outer fabric is greater than the length of run of internal layer fabric.
Preferably, the hollow sandwich fabric is by least one of quartz fibre, glass fibre, carbon fiber or aramid fiber
It weaves.
The woven molding of the conventional dedicated loom of hollow sandwich fabric can be used in the hollow sandwich fabric, improves production efficiency and production
Product lot stability.The hollow sandwich fabric uses single curvature structures, and internal layer fabric and outer fabric are in asymmetric mechanism, by
This can be required according to different curvature, separately design the fill yarn ends of internal layer fabric and outer fabric, adopt inside and outside layer fabric
With different fill yarn ends, so as to so that the internal layer warp thread of internal layer fabric and the outer layer warp thread of outer fabric have it is identical or big
Identical curvature is caused, makes internal layer fabric and outer fabric that there is roughly the same internal stress, there is hollow sandwich fabric more
For stable structure.And conventionally, as internal layer fabric is identical as the fill yarn ends of outer fabric, make internal layer fabric
The distance between adjacent weft is less than the distance between adjacent weft of outer fabric, therefore has the warp thread of internal layer fabric
Bigger curvature causes the internal stress of internal layer fabric to be significantly larger than the internal stress of outer fabric, has the warp thread of internal layer fabric
Have bigger a possibility that may cause fracture, increases the structural instability of hollow sandwich fabric.
In this application, the size of the radius of curvature of hollow sandwich fabric, can be by adjusting outer fabric and internal layer fabric
On the radical difference of weft yarn be adjusted.
Further, in a fabric tissue circulation, the radical of the internal layer weft yarn of internal layer fabric is n root, outer fabric
The radical of outer layer weft yarn is n+m*n/2 root, wherein the even number that n is >=4, the integer that m is >=1.Through interlacing point latitude tissue in fabric
Point sink-float rule is when reaching circulation, referred to as Weaving Cycle.
After the radical of the internal layer weft yarn of internal layer fabric determines, it can be required according to different curvature and to the hollow folder
The requirement of the intensity and density of layer fabric determines the radical of the outer layer weft yarn of outer fabric.
Fiber volume fraction and fiber orientation degree are closely bound up in the mechanical property and precast body of composite material, fiber volume
Content is higher, and fiber orientation degree is more straight, and the performance of fabric is better, according to the different outer layer weft yarn root of different curvature designs
Number, during composite molding, outer coversheet fabric is unfolded, and unlikely generation compressive deformation connects the suede of the inside and outside surface layer of fabric
Warp thread is isodistantly spaced distribution, surface layer inside and outside unlikely containing and find deformation and warpage.
Further, the floating length of the outer layer warp thread of outer fabric is greater than or equal to the floating length of the internal layer warp thread of internal layer fabric.?
In the application, the long length of yarn indicated in fabric on an one thread between two neighboring interlacing point is floated, is crossed over a warp thread
Fill yarn ends indicate；Or it is indicated with the warp thread radical that a weft yarn is crossed over.
The floating length of fabric is longer, and tightness is lower, and the flexibility of fabric is better, is more advantageous to the profiling of fabric.Internal layer fabric
Be bonded with die face, by mold guarantee, outer fabric is connected by suede with internal layer fabric profiling effect, composite molding completely according to
Rely the structure of fabric, the outer fabric the soft more is conducive to suede through natural standing.
Preferably, to keep hollow sandwich fabric structure uniform, there is stable structure and compressive property, including saturating
The uniformity of the physical indexs such as wave, the intermediate core layer are to wait wall thickness structure.
The structure of the wall thickness such as hollow sandwich fabric centre and surface layer is designed assigns product stable tension in mechanical property
And compressive property, service life of the product under the environment such as extraneous certain aerodynamic loading, high temperature and humidity and top vibration is improved, and
And product batches stability is good, reliable in quality；Which ensure that product is consistent in different wave transparent zone index in terms of electrical property, make
Beam steering error, minor lobe disturbance and beam-broadening of whole system etc. reduce as far as possible, improve the positioning accuracy of antenna and sweep
Retouch range.
Preferably, outer fabric with a thickness of 0.5-5mm, internal layer fabric with a thickness of 0.5-5mm, the thickness of intermediate core layer
For 3-20mm.Further preferably, outer fabric with a thickness of 1-3mm, internal layer fabric with a thickness of 1-3mm, the thickness of intermediate core layer
Degree is 5-15mm.Under the above conditions, the structure as precast body can be adapted to relatively broadly.
When being generally used for production protective enclosure, it is desirable that there are certain strength and stiffness, to achieve the purpose that protect antenna.
Being converted into precast body requirement fabric has certain thickness, to meet the needs of composite material preparation.
It according to different requirements, needs to weave hollow sandwich fabric using different fibers, specifically, when the hollow folder
When layer fabric is woven by least one of quartz fibre or glass fibre, the hollow sandwich fabric is for making wave transparent production
The outside protective covers of product；When the hollow sandwich fabric is woven by carbon fiber, the hollow sandwich fabric is for shielding case or prevents
Electrostatic cover.
Glass fibre is a kind of inorganic non-metallic material haveing excellent performance, and good insulating, heat resistance are strong, corrosion resistance is good,
High mechanical strength is very excellent matrices of composite material material, is widely used in the protective cover of electromagnetic wave transparent material；Quartz fibre
With excellent wave transparent performance, and hollow sandwich fabric is structure electromagnetic wave transparent material, therefore, the hollow folder prepared using quartz fibre
Layer fabric can be used for preparing the outside protective covers of high-end wave transparent product；For carbon fiber axle to intensity and modulus height, density is low, compares performance
Height, no creep, superhigh temperature resistant under non-oxidizing atmosphere, fatigue durability is good, specific heat and electric conductivity between nonmetallic between metal, heat
The coefficient of expansion is small and has anisotropy, and good corrosion resistance, X-ray transparent is good, therefore has good electrical and thermal conductivity performance,
The good feature of electromagnetic wave shielding, preparing hollow sandwich fabric as raw material using carbon fiber can be used for preparing shielding case or static electricity proof cover.
The present invention have profile modeling function hollow sandwich fabric can a weaving, knitted with the internal layer of different length
Object and outer fabric make the bending of the hollow sandwich fabric have better stability, can preferably be bonded mold, realization is knitted
The function profiling of object；Due to reducing the fill yarn ends of internal layer fabric, compared with prior art, cored structure can be effectively reduced
Density is intended to the density of hollow sandwich fabric more uniformly, simultaneously because reducing the fill yarn ends of internal layer fabric, can have
Effect ground reduces fiber consumption, reduces manufacturing cost.Compared with prior art, have profiling performance more excellent, structural strength is substantially
Promotion, high consistency, the better advantage of uniformity, can greatly promote the performance indexes of product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hollow sandwich fabric in the prior art.
Fig. 2 is the structural schematic diagram of one embodiment of the invention.
Fig. 3 is the structural schematic diagram of another embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
Referring to Fig. 2, a kind of hollow sandwich fabric 500 with profile modeling function, has an axis 200, in Fig. 2, axis
Line 200 is perpendicular to paper, and clear to show, which is indicated using a small circle, in this application, will be towards axis side
To be known as inside, in Fig. 2, arrow N's is oriented to inside, on the outside of the direction opposite with the inside is known as, then hollow sandwich
The fabric positioned at outside of fabric is known as outer fabric, and the fabric positioned inside is known as internal layer fabric.
Relative to the axis 200, which is in single-curvature；The hollow sandwich fabric 500 is knitted with outer layer
Object 510 and internal layer fabric 520, internal layer fabric 520 and outer fabric 510 are in unsymmetric structure.The outer fabric 510 is passed through by outer layer
Yarn is knitted with outer layer weft yarn cross, in Fig. 2, is illustratively shown two outer layer warp thread, is indicated respectively with label 1 and 2.
In Fig. 2, illustratively show 12 outer layer weft yarns, respectively with label 11,12,13,14,15,16,17,18,19,20,
21 and 22 indicate.
The internal layer fabric 520 is knitted by internal layer warp thread and internal layer weft yarn cross, in Fig. 2, illustratively shows two
Root internal layer warp thread is indicated with label 3 and 4 respectively.In Fig. 2, eight internal layer weft yarns are illustratively shown, respectively with label
31, it 32,33,34,35,36,37 and 38 indicates.
Outer layer weft yarn and internal layer weft yarn extend along the direction for being parallel to axis 200；In outer fabric 510 and internal layer fabric
Suede warp is provided between 520, which is interweaved with internal layer fabric 520 and outer fabric 510, and the suede is passed through perpendicular to above-mentioned axis
Line 200；Suede is through forming intermediate core layer 530, in Fig. 2, illustratively shows two suede warps, is indicated respectively with label 5 and 6.
In the present embodiment, it is in concentric structure that outer fabric 510 and internal layer fabric 520, which are center axis with axis 200, makes outer fabric
Length of run be greater than internal layer fabric length of run.
In a fabric tissue circulation, the radical of the internal layer weft yarn of internal layer fabric is n root, the outer layer weft yarn of outer fabric
Radical be n+m*n/2 root, wherein n be >=4 even number, m be >=1 integer.Specifically in the present embodiment, n 8, m 1.
In this application, when reaching circulation through interlacing point latitude interlacing point sink-float rule in fabric, referred to as Weaving Cycle.
It is appreciated that in other embodiments, the radical of internal layer weft yarn and the radical of outside weft yarn can also be other numbers
Amount, referring to Fig. 3, in another embodiment, m 2, internal layer fill yarn ends are 8, and outer layer fill yarn ends are 16, outer fabric with
Internal layer fabric difference in length is bigger, the occasion bigger suitable for curvature.
In the present embodiment, the floating length of the outer layer warp thread of outer fabric is greater than the floating length of the internal layer warp thread of internal layer fabric.Its
Middle outer fabric floats a length of 2, and internal layer fabric floats a length of 1.
And intermediate core layer is to wait wall thickness structure.In this embodiment, outer fabric with a thickness of 0.5mm, the thickness of internal layer fabric
Degree be 0.5mm, intermediate core layer with a thickness of 7mm, outer fabric is identical as the thickness of internal layer fabric, it will be understood that in other realities
It applies in example, outer fabric can be different from the thickness of internal layer fabric, for example, use outer fabric for 3mm, internal layer fabric 4mm,
Or outer fabric is 1mm, internal layer fabric 5mm.According to different requirements, the thickness of outer fabric can be between 1-5mm
Arbitrary data, internal layer fabric with a thickness of the arbitrary data between 1-5mm, intermediate core layer with a thickness of any between 3-20mm
Data.
In the present embodiment, hollow sandwich fabric 500 is made of glass fibre, it will be understood that in other embodiments,
It can also be woven using any one in quartz fibre, carbon fiber or aramid fiber, or using includes above-mentioned fiber
Composite fibre weaves.
Hollow sandwich fabric 500 in the present embodiment is used to make the outside protective covers of wave transparent product.When for making wave transparent
When the outside protective covers of product, hollow sandwich fabric can also be woven using quartz fibre.
When weaving hollow sandwich fabric using carbon fiber, which can be used for making shielding case or prevents quiet
Electricity cover.
By the hollow sandwich fabric 500 in the present embodiment and existing conventional there is profiling with the present embodiment equal thickness
The 8mm hollow sandwich fabric and routine 8mm hollow sandwich fabric of function are applied to antenna house protective cover product simultaneously, prepare respectively
Diameter is the single-curvature semi arch product of 500mm, 800mm, is compared, as a result such as table 1.
Table 1
It can be seen from Table 1 that lower using the CV value of the semi arch of product made by the application, i.e. the thickness of product
It is more uniform or highly more consistent.
Claims (7)
1. a kind of hollow sandwich fabric with profile modeling function, it is characterised in that:
With an axis, relative to the axis, which is in single-curvature；The hollow sandwich fabric has outer fabric
And internal layer fabric, internal layer fabric and outer fabric are in unsymmetric structure, and the outer fabric is by outer layer warp thread and outer layer weft yarn cross
It knits, which is knitted by internal layer warp thread and internal layer weft yarn cross, and outer layer weft yarn is parallel to internal layer weft yarn edge
The direction of the axis extends；Suede warp is provided between outer fabric and internal layer fabric, which passes through and internal layer fabric and outer layer
Fabric interweaves, and the suede is passed through perpendicular to the axis；The suede is through forming intermediate core layer；The length of run of outer fabric is greater than
The length of run of internal layer fabric.
2. hollow sandwich fabric according to claim 1, it is characterised in that: in a fabric tissue circulation, internal layer is knitted
The radical of the internal layer weft yarn of object is n root, and the radical of the outer layer weft yarn of outer fabric is n+m*n/2 root, wherein the idol that n is >=4
Number, the integer that m is >=1.
3. hollow sandwich fabric according to claim 1, it is characterised in that: the floating length of the outer layer warp thread of outer fabric is greater than
Or the floating length of the internal layer warp thread equal to internal layer fabric.
4. hollow sandwich fabric according to claim 1, it is characterised in that: the intermediate core layer is to wait wall thickness structure.
5. hollow sandwich fabric according to claim 1, it is characterised in that: outer fabric with a thickness of 0.5-5mm, internal layer
Fabric with a thickness of 0.5-5mm, intermediate core layer with a thickness of 3-20mm.
6. hollow sandwich fabric according to claim 1, it is characterised in that: by quartz fibre, glass fibre, carbon fiber or
At least one of aramid fiber weaves.
7. hollow sandwich fabric according to claim 6, it is characterised in that:
When the hollow sandwich fabric is woven by least one of quartz fibre or glass fibre, the hollow sandwich fabric
For making the outside protective covers of wave transparent product；
When the hollow sandwich fabric is woven by carbon fiber, which is used for shielding case or static electricity proof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546679.9A CN109402831B (en) | 2018-12-18 | 2018-12-18 | Hollow sandwich fabric with profiling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546679.9A CN109402831B (en) | 2018-12-18 | 2018-12-18 | Hollow sandwich fabric with profiling function |
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| Publication Number | Publication Date |
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| CN109402831A true CN109402831A (en) | 2019-03-01 |
| CN109402831B CN109402831B (en) | 2020-10-23 |
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Citations (4)
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|---|---|---|---|---|
| CN1183123A (en) * | 1995-04-06 | 1998-05-27 | 亚历山大·比斯根 | Method of weaving a three-dimensionally shaped fabric zone |
| CN104499149A (en) * | 2014-11-27 | 2015-04-08 | 中材科技股份有限公司 | Hollow core sandwich rotary body fabric and application thereof |
| CN106556056A (en) * | 2016-11-25 | 2017-04-05 | 遵义市义阳光电有限公司 | A kind of antistatic temperature preservation cover |
| CN206635496U (en) * | 2017-03-14 | 2017-11-14 | 南京泛锐克新材料科技有限公司 | Three-dimensional hollow fabric |
-
2018
- 2018-12-18 CN CN201811546679.9A patent/CN109402831B/en active Active
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|---|---|---|---|---|
| CN1183123A (en) * | 1995-04-06 | 1998-05-27 | 亚历山大·比斯根 | Method of weaving a three-dimensionally shaped fabric zone |
| US6000442A (en) * | 1995-04-06 | 1999-12-14 | Busgen; Alexander | Woven fabric having a bulging zone and method and apparatus of forming same |
| CN104499149A (en) * | 2014-11-27 | 2015-04-08 | 中材科技股份有限公司 | Hollow core sandwich rotary body fabric and application thereof |
| CN106556056A (en) * | 2016-11-25 | 2017-04-05 | 遵义市义阳光电有限公司 | A kind of antistatic temperature preservation cover |
| CN206635496U (en) * | 2017-03-14 | 2017-11-14 | 南京泛锐克新材料科技有限公司 | Three-dimensional hollow fabric |
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|---|
| 宗亚宁 等: "《纺织材料学》", 30 June 2013, 东华大学出版社 * |
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Effective date of registration: 20220107 Address after: 210000 No.30, Andeli, Yuhuatai District, Nanjing City, Jiangsu Province Patentee after: NANJING FIBERGLASS RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 99, Tongtian Road, Jiangning Science Park, Jiangning District, Nanjing, Jiangsu 210000 Patentee before: SINOMA SCIENCE & TECHNOLOGY Co.,Ltd. |