CN112878727B - 一种微创技术再造防水层的方法 - Google Patents
一种微创技术再造防水层的方法 Download PDFInfo
- Publication number
- CN112878727B CN112878727B CN202110199874.4A CN202110199874A CN112878727B CN 112878727 B CN112878727 B CN 112878727B CN 202110199874 A CN202110199874 A CN 202110199874A CN 112878727 B CN112878727 B CN 112878727B
- Authority
- CN
- China
- Prior art keywords
- waterproof
- reconstructing
- portions
- waterproof layer
- grouting
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000005516 engineering process Methods 0.000 title abstract description 6
- 239000000565 sealant Substances 0.000 claims abstract description 50
- 239000000945 filler Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 238000011049 filling Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims description 44
- 239000000843 powder Substances 0.000 claims description 43
- 238000002156 mixing Methods 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 26
- 229920001971 elastomer Polymers 0.000 claims description 25
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 22
- -1 polydimethylsiloxane Polymers 0.000 claims description 20
- 239000004570 mortar (masonry) Substances 0.000 claims description 19
- 239000004359 castor oil Substances 0.000 claims description 18
- 235000019438 castor oil Nutrition 0.000 claims description 18
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 18
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 17
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 17
- 239000003999 initiator Substances 0.000 claims description 17
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- 239000006229 carbon black Substances 0.000 claims description 16
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 13
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 11
- WOCGGVRGNIEDSZ-UHFFFAOYSA-N 4-[2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical compound C=1C=C(O)C(CC=C)=CC=1C(C)(C)C1=CC=C(O)C(CC=C)=C1 WOCGGVRGNIEDSZ-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 10
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 9
- 229920001973 fluoroelastomer Polymers 0.000 claims description 9
- 239000010445 mica Substances 0.000 claims description 9
- 229910052618 mica group Inorganic materials 0.000 claims description 9
- 229910017604 nitric acid Inorganic materials 0.000 claims description 9
- 239000010451 perlite Substances 0.000 claims description 9
- 235000019362 perlite Nutrition 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 9
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 8
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 8
- 239000004709 Chlorinated polyethylene Substances 0.000 claims description 8
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 8
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 8
- 239000010426 asphalt Substances 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 8
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 8
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 8
- HOIQWTMREPWSJY-GNOQXXQHSA-K iron(3+);(z)-octadec-9-enoate Chemical compound [Fe+3].CCCCCCCC\C=C/CCCCCCCC([O-])=O.CCCCCCCC\C=C/CCCCCCCC([O-])=O.CCCCCCCC\C=C/CCCCCCCC([O-])=O HOIQWTMREPWSJY-GNOQXXQHSA-K 0.000 claims description 8
- CTJJGIVJOBVMEO-UHFFFAOYSA-N tetraoctyl benzene-1,2,4,5-tetracarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC(C(=O)OCCCCCCCC)=C(C(=O)OCCCCCCCC)C=C1C(=O)OCCCCCCCC CTJJGIVJOBVMEO-UHFFFAOYSA-N 0.000 claims description 8
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 8
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 7
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 7
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 7
- ARYZCSRUUPFYMY-UHFFFAOYSA-N methoxysilane Chemical compound CO[SiH3] ARYZCSRUUPFYMY-UHFFFAOYSA-N 0.000 claims description 7
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 4
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- IBWXKMBLEOLOLY-UHFFFAOYSA-N dimethoxy(prop-2-enyl)silicon Chemical compound CO[Si](OC)CC=C IBWXKMBLEOLOLY-UHFFFAOYSA-N 0.000 claims description 3
- LFRDHGNFBLIJIY-UHFFFAOYSA-N trimethoxy(prop-2-enyl)silane Chemical compound CO[Si](OC)(OC)CC=C LFRDHGNFBLIJIY-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000008439 repair process Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 abstract description 4
- 230000005465 channeling Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 2
- 238000004080 punching Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 22
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- CSJDCSCTVDEHRN-UHFFFAOYSA-N methane;molecular oxygen Chemical compound C.O=O CSJDCSCTVDEHRN-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000011041 water permeability test Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Medicinal Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
剥离强度(N/10mm) | 透水性 | |
实施例1 | 15.42 | 不透水 |
实施例2 | 16.97 | 不透水 |
实施例3 | 18.63 | 不透水 |
剥离强度(N/10mm) | 透水性 | |
对比例1 | 11.89 | 不透水 |
对比例2 | 14.38 | 轻微透水 |
对比例3 | 13.69 | 不透水 |
对比例3 | 13.42 | 不透水 |
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110199874.4A CN112878727B (zh) | 2021-02-23 | 2021-02-23 | 一种微创技术再造防水层的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110199874.4A CN112878727B (zh) | 2021-02-23 | 2021-02-23 | 一种微创技术再造防水层的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112878727A CN112878727A (zh) | 2021-06-01 |
CN112878727B true CN112878727B (zh) | 2022-06-24 |
Family
ID=76053830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110199874.4A Active CN112878727B (zh) | 2021-02-23 | 2021-02-23 | 一种微创技术再造防水层的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112878727B (zh) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60037755T2 (de) * | 2000-01-28 | 2008-12-24 | Kaneka Corp. | Härtbare zusammensetzung |
EP1916270A1 (de) * | 2006-10-24 | 2008-04-30 | Sika Technology AG | Hitzehärtende Epoxidharzzusammensetzung mit blockiertem Polyurethanprepolymer |
DE102009027333A1 (de) * | 2009-06-30 | 2011-01-05 | Henkel Ag & Co. Kgaa | Härtbare Zusammensetzung mit silanmodifiziertem Reaktivverdünner |
CN104603224B (zh) * | 2012-08-27 | 2017-10-13 | 陶氏环球技术有限责任公司 | 促凝和增韧的两部分环氧粘合剂 |
KR101492492B1 (ko) * | 2014-06-03 | 2015-02-12 | (주) 케이 이엔씨 | 3중 차단 벽체 방수 공법 |
CN106894585A (zh) * | 2017-02-24 | 2017-06-27 | 河南天下无漏防水科技股份有限公司 | 再造防水层施工工艺 |
CN107448008A (zh) * | 2017-09-25 | 2017-12-08 | 韩旭 | 一种利用微创法再造耐久防水层的施工工艺 |
KR101951792B1 (ko) * | 2018-05-24 | 2019-02-25 | 주식회사 제이에스기술 | 점도가 서로 다른 2종의 아크릴 주입제를 사용하는 보수공법 |
-
2021
- 2021-02-23 CN CN202110199874.4A patent/CN112878727B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN112878727A (zh) | 2021-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110396186B (zh) | 一种亲水聚醚、制备方法及其用途 | |
KR100948348B1 (ko) | 급결형 무기질 조성물 및 아크릴레이트계 차수재를 이용한 콘크리트 구조물의 차수 및 보수보강 공법 | |
CN104018526B (zh) | Epr变形缝修补止水结构及其施工方法 | |
CN109354461B (zh) | 一种高聚物复合注浆材料及其制备方法 | |
CN112095647B (zh) | 一种快速封堵止水帷幕泄漏点的堵漏方法 | |
CN106284424B (zh) | 一种无毒低粘度高强型环氧基化学灌浆材料的灌浆方法 | |
CN112745816B (zh) | 钻井液用堵漏剂及其制备方法 | |
CN102876005B (zh) | 一种低粘度高闪点水性聚氨酯堵水材料及其制备方法 | |
CN104177554A (zh) | 一种环保型丙烯酸酯灌浆材料及其制备方法与应用 | |
CN112281927A (zh) | 框架柱独立基础渗漏治理施工方法 | |
CN112878727B (zh) | 一种微创技术再造防水层的方法 | |
CN112830751A (zh) | 一种高分子堵漏灌浆料及制备方法和施工方法 | |
CN106892594A (zh) | 一种微膨胀增韧水泥浆及其制备方法 | |
CN111927505A (zh) | 一种地铁隧道裂缝的防水堵漏施工方法 | |
KR100920963B1 (ko) | 고성능 그라우트재를 이용한 이음부의 누수보강구조 및누수보강공법 | |
CN112252491B (zh) | 一种混凝土结构变形缝用防渗装置及其施工工艺 | |
CN106928947B (zh) | 一种套管间环空的封堵材料、封堵装置和封堵方法 | |
CN109882203B (zh) | 一种联合充填加固工艺 | |
CN113024193B (zh) | 一种非开挖井室管道箱涵专用丙烯酸盐止水堵漏灌浆材料 | |
CN111075393A (zh) | 一种油气田套损井长井段挤堵树脂修复工艺 | |
CN112878728A (zh) | 一种地下室渗漏的修缮方法 | |
CN113152696A (zh) | 一种无收缩聚合物砂浆结合环氧树脂处理大面积渗水边墙的方法 | |
CN110452671B (zh) | 一种用于基坑排桩围护墙的堵漏剂及其使用方法 | |
CN113004000B (zh) | 一种适用于地下工程快速堵漏的聚合物型双液注浆材料、制备方法及使用方法 | |
CN110627472B (zh) | 一种堤坝除险加固材料及其加固方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: 230088, 3rd Floor, Comprehensive Building, No. 55 Science Avenue, High tech Zone, Hefei City, Anhui Province - A0880, Anhui Radio and Television Enterprise Service Center Patentee after: Anhui ink sand engineering repair technology Co.,Ltd. Country or region after: China Address before: No. 101, Building 8, Jinbo Shopping Mall, Huaizhong Avenue, Guoyang County, Bozhou City, Anhui Province 233600 Patentee before: Anhui ink sand engineering repair technology Co.,Ltd. Country or region before: China |