CN108400000A - A kind of fungi-proofing erosion-resisting transformer - Google Patents

A kind of fungi-proofing erosion-resisting transformer Download PDF

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Publication number
CN108400000A
CN108400000A CN201810154295.6A CN201810154295A CN108400000A CN 108400000 A CN108400000 A CN 108400000A CN 201810154295 A CN201810154295 A CN 201810154295A CN 108400000 A CN108400000 A CN 108400000A
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China
Prior art keywords
transformer
polypeptide
sealing ring
fungi
pipe
Prior art date
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Withdrawn
Application number
CN201810154295.6A
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Chinese (zh)
Inventor
李忠波
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Individual
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Individual
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Priority to CN201810154295.6A priority Critical patent/CN108400000A/en
Publication of CN108400000A publication Critical patent/CN108400000A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/23—Corrosion protection
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
    • C07K7/04—Linear peptides containing only normal peptide links
    • C07K7/08—Linear peptides containing only normal peptide links having 12 to 20 amino acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
    • C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2489/00—Characterised by the use of proteins; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/17—Amines; Quaternary ammonium compounds
    • C08K5/175—Amines; Quaternary ammonium compounds containing COOH-groups; Esters or salts thereof

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Molecular Biology (AREA)
  • Genetics & Genomics (AREA)
  • Biophysics (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Peptides Or Proteins (AREA)

Abstract

The invention discloses a kind of fungi-proofing erosion-resisting transformers, it includes high pressure inlet wire pipe (l), low-pressure line-outgoing pipe (2), transformer body (3), transformer bracket (4), mesohigh inlet wire pipe (l) and outlet-pipe with low-pressure line-outgoing pipe (2) are connect by the sealing ring (5) coated with anti-mildew polypeptide film layer.The sealing ring of the transformer that the present invention develops, especially for transformer has effects that extremely strong resistance to bacterium, erosion-resisting, and preparation method is easy, and should not be special technique, you can realize the effect.It is simple with preparing, it is easy to use, it is easily installed the effect used.

Description

A kind of fungi-proofing erosion-resisting transformer
Technical field
The invention mainly relates to a kind of transformer, specifically a kind of mould proof fungi-proofing erosion-resisting transformer.
Background technology
In recent years, with domestic, International Power industry fast development, large capacity, voltage levels thermal power plants It builds up and puts into operation successively.With the raising of high voltage side of transformer voltage class, the occupation of land of high voltage distribution installation, transformer inlet wire region Area gradually increases；High voltage side of transformer to power distribution equipment wire leading method is with the difference that plant area arranges and difference is larger, one As just like lower wiring patter:Aerial condutor inlet wire, SF6 tracheae busbares inlet wire, high-pressure seal ring inlet wire.And in life, it makes somebody a mere figurehead Conducting wire inlet wire be referring to mode.
It is well known that transformer all works throughout the year, either blowing and raining is all to be within 24 hours outdoor environment Condition, working environment are very severe.This is for transformer, it is necessary to which extraordinary sealing effect and connector stablize company Connecing property.If above-mentioned requirements cannot be reached, transformer service life may be shortened, and if water inlet, transformer can because Into impurity, causing temperature excessively high, there is also fire hazards, this can all bring loss to user.And inlet wire pipe and outlet-pipe are such as Fruit is directly and transformer Hard link, however it remains the risk of leak, therefore, to be sealed be very to addition rubber ring therebetween The effective effective means for avoiding introduced contaminants from entering transformer, but rubber ring remains aging, it is easy to expose to the weather Mouldy danger.
Therefore a kind of transformer that can thoroughly avoid introduced contaminants from entering is developed, is that extremely urgent technology is pursued.
Invention content：
It is an object of the invention to overcome the shortcomings of above-mentioned prior art, a kind of fungi-proofing erosion-resisting transformer is provided.
The present invention is achieved by the following technical solutions：
A kind of fungi-proofing erosion-resisting transformer comprising have high pressure inlet wire pipe (1), low-pressure line-outgoing pipe (2), transformer body (3), transformer bracket (4) are coated with the sealing ring (5) of anti-mildew polypeptide film layer, mesohigh inlet wire pipe (1) and low-pressure line-outgoing (2), which are managed, with transformer is connect by the sealing ring (5) coated with anti-mildew polypeptide film layer.
Sealing ring is mounted in all inlet wire pipes.Its thickness and diameter, can be as needed, appropriate to be adjusted It is whole.
The sealing ring of the polypeptide film layer of addition in the present invention, it is fungi-proofing with the superpower mouldy aging of inhibition sealing ring Effect, can effectively prevent the corrosion and damage of ambient enviroment and bacteriogenic Signs of Mould to sealing ring, can be notable Extension transformer service life, economize on resources.
The present invention additionally provides a kind of preparation methods of anti-mildew polypeptide, we construct polypeptide database, then adopt first The high-throughput screening of antibacterial peptide is carried out with computer virtual sifting technology.From computational screening result, selection 116 can The polypeptide of the inhibition mould function of specificity, passes through conventional verification test, it was confirmed that these polypeptides, which have, inhibits fungus growth And kill corresponding mould and fungi-proofing function.The polypeptide is respectively designated as KJTD-1~116, and sequence corresponds to respectively In SEQ ID NO：Shown in 1-116.The polypeptide can be used for subsequent volume industrial metaplasia by artificial synthesized mode Production.
The present invention additionally provides a kind of preparation methods of polypeptide film layer, are spread in the plastic film mulch method of this field routine Film merges polypeptide in the film in the form of mixed uniformly.Preparation method in wherein CN103589153A is optimal Mode, but be not unique mode.
The technological merit of the present invention：
The sealing ring of the transformer that the present invention develops, especially for transformer has extremely strong resistance to bacterium, erosion-resisting work( Effect, and preparation method is easy, and should not be special technique, you can realize the effect.Simple, the user with preparing Just, it is easily installed the effect used.
Description of the drawings
Fig. 1 is the structural schematic diagram of transformer.Wherein (1) is high pressure inlet wire pipe, and (2) are low-pressure line-outgoing pipe, and (3) are transformation Device ontology, (4) are transformer bracket, and (5) are the sealing ring coated with anti-mildew polypeptide film layer.
Specific implementation mode：
The preparation of 1 polypeptide of embodiment and film
Polypeptide database is constructed first, and computer simulation screening technique is then used to carry out the high-throughput sieve of antibacterial peptide Choosing.From computational screening result, the polypeptide of 116 inhibition mould functions of capableing of specificity is selected, conventional verification is passed through Experiment, it was confirmed that these polypeptides have the function of inhibiting fungus growth and kill corresponding mould.The polypeptide is named respectively For KJTD-1~116, sequence corresponds respectively to SEQ ID NO：Shown in 1-116.The polypeptide passes through artificial synthesized mode It is produced for subsequent bulk industrial.
Prepared by the polypeptide become film layer, and method is：(1) raw material mixes:At 25 DEG C, 3g is heated in there-necked flask 4,4 '-diaminodiphenyl ethers and 54mL n,N-dimethylacetamide are added thereto through being stirred by ultrasonic to after being completely dissolved 5.72g γ Al2O3 colloidal sols, continue 28~35min of ultrasonic agitation；(2) preparation of polyamic acid/γ Al2O3 presomas:In ice water Under the conditions of bath, 3.27g pyromellitic acid anhydrides average mark is added in there-necked flask for 6 times, polyamic acid γ Al2O3 forerunners are made Body continues to stir 6h, is sufficiently mixed γ Al2O3 and polyamic acid；Add 0.1g KJTD-1 i.e. SEQ IDN O：Shown in 1 Polypeptide；(3) plastic film mulch:Mixed solution made from step (2) is poured into plastic film mulch on a glass, keeps the temperature 0.7h in an oven, is controlled Oven temperature is 80 DEG C；(3) preparation of laminated film:Glass plate after step (3) is kept the temperature takes out, will after natural cooling Film and glass plate are placed in deionized water 2.5~3.2h of immersion, and film is then removed from glass plate, obtain thickness be 25~ 30 μm of laminated film；(5) it dries:Laminated film made from step (4) is placed in baking oven and is dried.
The film layer according to the method for embodiment 1, can respectively use the polypeptide preparation of KJTD-2~116 to become 116 kinds of different types of film layers.
The preparation of 2 transformer of embodiment
According to the preparation transformer method of this field routine, according to the preparation method of Fig. 1, the transformation is prepared Device, wherein film are sticked in the sealing ring surrounding being prepared.The sealing ring is based on different polypeptide film layers, altogether 116 types are prepared.
Embodiment 3 compares
Sealing ring is prepared according to this field routine, wherein not containing polypeptide.
4 mould proof experiment of embodiment
J is tested according to GB2423.16-90 standard pilots：Mildew experimental method is tested accordingly, and specific steps are referring to mark Standard tests sealing ring.Its result is as follows：
As can be seen from the above results, the sealing ring that prepared by polypeptide of the present invention has the function of preferable antifungi growth.
5 other bacterium of embodiment prevent from testing
Simulate underground environment, sealing ring be placed in dark surrounds, 20 DEG C of outdoor environments, humidity keeps 95%, by streptomycete, Mucor, saccharomycete, bacillus subtilis, staphylococcus aureus, streptococcus are sprayed onto sealing ring surface in the form of spraying, and 3 Its spray is primary.After 4 months, sealing ring situation is observed, it is as a result as follows：
As can be seen from the above results, sealing ring of the invention has the function of preventing mould and corresponding bacterial growth, The sealing ring of the present invention can effectively prevent the corrosion of mould bacterium compared with conventional seals circle, can widely be laid in it is moist, Mould grows serious environment, is with a wide range of applications.
6 field test of embodiment
Sealing ring made of KJTD-1 polypeptide films is taken, according to the construction of Fig. 1, is installed on corresponding transformer Face.Observation 6 months.The sealing ring without polypeptide film is taken to be installed in above corresponding transformer according to the construction of Fig. 1. Controlled observation 6 months.Two transformers are adjacent, and therefore, environment is identical.After 6 months, it has been observed that without polypeptide film There is mold colony trace on sealing ring surface, and sealing ring aging is serious.And having added the sealing ring of polypeptide, surface does not have bacterium colony Trace, sealing ring are intact.Sealing ring prepared by remaining polypeptide form, also has same effect, here, not repeating one by one.
From above in association with can be seen that the transformer of the invention constructed, there is preferable sealing effect, be suitble to industry metaplasia Production application.
Sequence table
<110>Li Zhongbo
<120>A kind of fungi-proofing erosion-resisting transformer
<160> 11
<170> SIPOSequenceListing 1.0
<210> 1
<211> 17
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 1
Met Gly Gly Val Asp Tyr Gly Thr Ala Ala Trp Met Gly Asn Arg Asn
1 5 10 15
Ile
<210> 2
<211> 16
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 2
Asn Pro Ile Lys Asp Pro Glu Ser Val Gln Asp Ser Glu Arg Met Met
1 5 10 15
<210> 3
<211> 18
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 3
Gly Arg Glu Ser Glu Ser Met Ala Arg Tyr Val Pro Gln Arg Gln Gln
1 5 10 15
Met Gln
<210> 4
<211> 18
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 4
Trp Thr His Ser Trp Phe Ile Arg Asp Cys Arg Asn Arg Thr Gln Arg
1 5 10 15
Ala Arg
<210> 5
<211> 18
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 5
Arg Pro Gln Cys Met Ser Glu Cys Ser Val Ile His Leu Met Cys Ser
1 5 10 15
His Ser
<210> 6
<211> 17
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 6
Gln Gln Glu Tyr Ala Gln Gln His Leu Pro Pro Gly Ser Tyr Phe Thr
1 5 10 15
Leu
<210> 7
<211> 16
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 7
Gly Met Ile Lys Cys Trp Thr Glu Asn Val Cys Ile Phe Phe Ser Leu
1 5 10 15
<210> 8
<211> 14
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 8
Asn Ala Glu His Phe Leu Pro Lys Ala Pro Trp Val Trp Gln
1 5 10
<210> 9
<211> 14
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 9
Gly Asn Gln Arg His His Gln Gly Cys Ala His Lys Met Ala
1 5 10
<210> 10
<211> 17
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 10
Gly Arg Gly Cys Lys Val Gly Thr Ser Asn Ser Val Asn Ala Pro Gly
1 5 10 15
Thr
<210> 11
<211> 16
<212> PRT
<213>Artificial sequence (2 Ambystoma laterale x Ambystoma jeffersonianum)
<400> 11
Gly Cys Ala Ile Lys Gln Cys Ile Arg Pro Gly Asn Trp Cys Trp Leu
1 5 10 15

Claims (4)

1. a kind of fungi-proofing erosion-resisting transformer, it is characterised in that include high pressure inlet wire pipe (1), low-pressure line-outgoing pipe (2), transformation Device ontology (3), transformer bracket (4), mesohigh inlet wire pipe (1) and low-pressure line-outgoing pipe (2) and transformer are by being coated with The sealing ring (5) of anti-mildew polypeptide film layer connects.
2. transformer according to claim 1, which is characterized in that the anti-mildew polypeptide film layer contains SEQ ID NO： Polypeptide shown in 11.
3. a kind of polypeptide, sequence such as SEQ ID NO：Shown in 11.
4. application of the polypeptide as claimed in claim 3 in being used to prepare fungi-proofing erosion-resisting transformer.
CN201810154295.6A 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer Withdrawn CN108400000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810154295.6A CN108400000A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610156867.5A CN105845325B (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154295.6A CN108400000A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer

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CN108400000A true CN108400000A (en) 2018-08-14

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Family Applications (12)

Application Number Title Priority Date Filing Date
CN201810154301.8A Withdrawn CN108400001A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154294.1A Withdrawn CN108133816A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154304.1A Withdrawn CN108122666A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154300.3A Withdrawn CN108122665A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154303.7A Withdrawn CN108400003A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201610156867.5A Expired - Fee Related CN105845325B (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201710410710.5A Active CN106981351B (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154295.6A Withdrawn CN108400000A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154284.8A Withdrawn CN108133814A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154302.2A Withdrawn CN108400002A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154285.2A Withdrawn CN108133815A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154306.0A Withdrawn CN108400004A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer

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Application Number Title Priority Date Filing Date
CN201810154301.8A Withdrawn CN108400001A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154294.1A Withdrawn CN108133816A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154304.1A Withdrawn CN108122666A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154300.3A Withdrawn CN108122665A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154303.7A Withdrawn CN108400003A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201610156867.5A Expired - Fee Related CN105845325B (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201710410710.5A Active CN106981351B (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer

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CN201810154284.8A Withdrawn CN108133814A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154302.2A Withdrawn CN108400002A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154285.2A Withdrawn CN108133815A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer
CN201810154306.0A Withdrawn CN108400004A (en) 2016-03-20 2016-03-20 A kind of fungi-proofing erosion-resisting transformer

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CN (12) CN108400001A (en)

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CN109519618A (en) * 2018-12-28 2019-03-26 深圳市鑫明兴科技有限公司 A kind of air hose quickly couples anchor ear external member

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Application publication date: 20180814