Korea Tenders - 5 August 2026 (Page 5 of 10)

14176945 Inha University College of Medicine education and practice building remodeling and new construction (communication) Deadline19 Aug 2026 14176946 Precision safety diagnosis service for Marak 3 Bridge in 2026 Deadline10 Aug 2026 14176947 Milseong Elementary School Annex Building Ceiling Replacement Design Service Negotiated Contract Notice Deadline10 Aug 2026 14176948 Precision safety diagnosis service for Bansan Bridge (formerly) in 2026 Deadline10 Aug 2026 14176949 Tongyeong Gangguan neighborhood commercial consulting (VMD) (design improvement, store development) Deadline25 Aug 2026 14176950 Inha University College of Medicine education and practice building remodeling and new construction (firefighting) Deadline19 Aug 2026 14176951 Inha University College of Medicine education and practice building remodeling and new construction (communication) Deadline19 Aug 2026 14176952 Electrical supervision service for remodeling and new construction of the teaching practice building at Inha University College of Medicine (electricity and communication) Deadline19 Aug 2026 14176953 Miryang Girls’ Middle School and 1 other school (Milyang Middle School) cafeteria modernization and ventilation improvement mechanical facility design service notice on negotiate Deadline10 Aug 2026 14176954 Architectural supervision service for remodeling and new construction of the teaching practice building at Inha University College of Medicine (architecture, demolition, machinery, Deadline19 Aug 2026 14176955 Rail welding non-destructive testing service (Line 3 trackway improvement work in 2025) Deadline10 Aug 2026 14176956 Biohealth Innovation Convergence University e-learning content development service for the 2nd semester of 2026 Deadline19 Aug 2026 14176957 Repair work on 4 facilities including Myeongcheon Underground Passage 3 on National Route 21 Deadline10 Aug 2026 14176959 Korea Information and Communication Corporation Association 2026 member list production and delivery service Deadline11 Aug 2026 14176960 Inha University College of Medicine Educational Practice Building Remodeling and New Construction Construction Waste Disposal Service Deadline19 Aug 2026 14176961 Miryang Girls’ Middle School Cafeteria Modernization Project Design Service Negotiated Contract Notice Deadline10 Aug 2026 14176962 Construction project management engineering, including supervising authority for the new construction of the Ajung Underpass between Jeonju and Shinri on the Jeolla Line Deadline30 Sep 2026 14176963 Dalseong-gun Agricultural Technology Center remodeling project Deadline10 Aug 2026 14176964 Construction project management, including supervising authority for the passage box opening construction for the Bugok residential area bypass road across the Gyeongbu Line (Jikji Deadline30 Sep 2026 14176965 Construction project management, including acting supervision of disaster prevention construction at 9 locations on the Gyeongbu Line (6 locations), Honam Line (1 location), and Ch Deadline30 Sep 2026 14176966 Yeongju City Seocheon Bridge Embankment Emergency Restoration Construction Deadline10 Aug 2026 14176968 Construction project management engineering, including supervising authority for the new construction of Nogeun Underpass on the Gyeongbu Line (Yeongdong~Hwanggan) Deadline30 Sep 2026 14176969 Construction project management, including supervising and supervising disaster prevention work and fence improvement work at 19 locations including Honam High-Speed ​​Line, Go Deadline30 Sep 2026 14176970 Construction waste disposal service for Hoeya River (Hoeya District) local river maintenance project (waste concrete and mixed construction waste) Deadline12 Aug 2026 14176971 2024 Tongyeong region base processing center modernization support project (Tongyeong Fisheries Cooperative low-temperature processing center) construction, civil engineering, and Deadline27 Aug 2026 14176973 Construction project management, including supervising and supervising disaster prevention work and fence improvement work at 30 locations including Honam High Speed ​​Line Oso Deadline30 Sep 2026 14176974 Closed) Notice on private contract for dismantling of the main building and 2 buildings of the Sangdong Draft In-Branch Headquarters Deadline10 Aug 2026 14176977 ★Performance restrictions and retention of railroad signal technicians★ 2026 Chungbuk headquarters railroad crossing safety equipment improvement and other construction Deadline12 Aug 2026 14176980 Pipeline dredging work in preparation for the rainy season in 2026 (2nd) Deadline10 Aug 2026 14176983 AICA AI Semiconductor Verification Center Communication Construction Deadline11 Aug 2026 14176985 Research on upgrading the National Emissions and Air Quality Assessment System (NEAS) for policy analysis (Ⅱ) Deadline25 Aug 2026 14176988 Purchase of thermohygrostat Deadline18 Aug 2026 14176989 Water development project in Yeondang district, Owun-ri, Pyeongeun-myeon Deadline10 Aug 2026 14176991 High Vacuum Induction Melting Furnace 제작 Deadline05 Aug 2026 14177221 ESD Toolbox for satellite assembly and environmental testing Deadline12 Aug 2026 14177224 Production of rail-type aerial work vehicle (scissor type) Deadline06 Aug 2026 14177225 2026 Gangneung City animal rescue service Deadline12 Aug 2026 14177226 Ha Dong-ho luxury garden creation project Deadline10 Aug 2026 14177227 Purchase and installation of civil defense warning facilities in 2026 Deadline10 Aug 2026 14177229 Architectural planning design and maintenance plan support service for rapid integrated planning target area (area 719, Guro-dong) Deadline25 Aug 2026 14177230 Architectural planning design and maintenance plan support service for the rapid integrated planning target area (792-33, Guro-dong) Deadline25 Aug 2026 14177232 Architectural planning design and maintenance plan support service for rapid integrated planning target area (Changdong 608 area) Deadline25 Aug 2026 14177233 Architectural planning design and maintenance plan support service for the rapid integrated planning target area (16-179 Jeongneung-dong area) Deadline25 Aug 2026 14177234 Architectural planning design and maintenance plan support service for the rapid integrated planning target area (232-1 Junggok-dong area) Deadline25 Aug 2026 14177235 Architectural planning design and maintenance plan support service for the rapid integrated planning target area (Suyu-dong 486 area) Deadline25 Aug 2026 14177237 Architectural planning design and maintenance plan support service for rapid integrated planning target area (300-1 Haengdang-dong area) Deadline25 Aug 2026 14177238 Architectural planning design and maintenance plan support service for the rapid integrated planning target area (170-14 Yeonhui-dong area) Deadline25 Aug 2026 14177243 IBLOCA multidimensional flow mixing experiment vessel 1EA Deadline05 Aug 2026 14177245 Architectural planning design and maintenance plan support service for the rapid integrated planning target area (392-9, Cheonho-dong) Deadline25 Aug 2026 14177246 Inha University College of Medicine education and practice building remodeling and new construction (firefighting) Deadline19 Aug 2026 14177247 Daegaya Arboretum vegetation planting construction plant (UHPC) and sitting wall manufacturing and installation Deadline10 Aug 2026 14177372 (1 year unit price_qualification) KTX air conditioning control system, hallway cooling, vertical grill, etc. 2 points (installation)_means and interruptions Deadline13 Aug 2026 14177373 air conditioner Deadline07 Aug 2026 14177380 (Tentative name) Purchase and installation of government-supplied materials (electric heat pump air conditioner) at Jeonggwan 2 Middle School and Dongmyeong Elementary School Deadline14 Aug 2026 14177381 [Emergency] Hanbaek Elementary School and 1 school (Hwawon Elementary) restroom air conditioner installation work Deadline11 Aug 2026 14177382 Galdam Elementary School and 1 School (Dongtan Middle School) Bathroom Air Conditioning and Heating Installation Work Deadline13 Aug 2026 14177383 Chungcheongbuk-do Youth Promotion Center and Complex Cultural Center remodeling project (machinery), purchase of government-supplied materials (air conditioner) Deadline11 Aug 2026 14177390 Gyeonggi General Labor Welfare Center EHP air conditioner replacement and installation Deadline11 Aug 2026 14177391 Hanbaek Middle School bathroom air conditioner installation work Deadline11 Aug 2026 14177392 Restroom air conditioner installation work at Jangmyeong Elementary School and 1 school (Woojeong Elementary School) Deadline11 Aug 2026 14177393 Seosin Elementary School and 1 school (Seongsan Elementary School) restroom air conditioner installation work Deadline11 Aug 2026 14177394 (Tentative name) Purchase and installation of government-supplied materials (electric heat pump, air conditioner) at Ilgwang High School. Deadline14 Aug 2026 14177399 (Tentative name) Purchase and installation of air conditioning and heating equipment for Daejang 2U new construction (continuing expenses) Deadline13 Aug 2026 14177843 Announcement of e-bidding for purchase of Lee Eun School student school vehicle [diesel bus] Deadline13 Aug 2026 14178660 Jeonju Life Science High School Food Science Department Lab Expansion and Remodeling Purchase and Installation of Air Conditioning and Heating Equipment Deadline13 Aug 2026 14178888 Public building green remodeling project (Boeun-gun Welfare Center for the Elderly and Disabled (Architecture)) Deadline10 Aug 2026 14179411 2026 2nd plantation land mowing project (Hwacheon district) Deadline11 Aug 2026 14179412 2026 2nd plantation land mowing project (urban district) Deadline11 Aug 2026 14179413 2026 2nd plantation land mowing project (Gapyeong District) Deadline11 Aug 2026 14179414 Microwave for heavy metal pretreatment Deadline10 Aug 2026 14179415 2026 (2nd) Construction waste disposal service for emergency water leak restoration work within the Northern Waterworks District (long-term continuous annual unit price contract) Deadline11 Aug 2026 14179417 「Everyone’s Sunshine Platform」 (AI-based participatory operation platform) construction service Deadline18 Aug 2026 14179418 Jeonnam Gwangju Integrated Special Metropolitan Office of Education Jeonnam Student Education Center exterior wall repair work Deadline11 Aug 2026 14179419 Jeonju University conducts purchase bidding for mass flowmeter and 19 other items N Deadline19 Aug 2026 14179420 Radiology department facility improvement and equipment introduction facility construction (electricity) Deadline12 Aug 2026 14179422 Public building green remodeling (Boeun-gun Senior Citizens and Disabled Welfare Center) (electricity) Deadline10 Aug 2026 14179423 2026 Youth 365 Hot Place Creation Project event operation service Deadline18 Aug 2026 14179424 2027 School Year Incheon Haneul Middle School New Student Uniform (Winter Uniform, Summer Uniform) School-Organized Purchase Bidding Announcement Deadline27 Aug 2026 14179425 Maintenance service for systematic management of railway land (2nd) - re-announcement Deadline02 Sep 2026 14179426 Purchase of office furniture and supplies Deadline19 Aug 2026 14179427 Notice on submission of quotation for small-scale private contract (precise and regular safety inspection service for water supply facilities in Guri City in the second half of 202 Deadline10 Aug 2026 14179428 Purchase of mass flow meter system related to ship fuel quantitative supply support project Deadline18 Aug 2026 14179429 Buy LED Screen Deadline19 Aug 2026 14179430 Production, purchase and installation of incineration facility fluidized air preheater Deadline19 Aug 2026 14179431 Basic and detailed design service to increase facility capacity of Bangbae rainwater pumping station Deadline17 Sep 2026 14179432 Hajang-ri Village Road Maintenance Project Deadline10 Aug 2026 14179433 2026 Super Gap Business Model Construction Support Project (Re-Announcement) Deadline19 Aug 2026 14179434 Integrated construction project management service for Chungju City’s collection pipe improvement project and 1 site (nomination competition) Deadline11 Aug 2026 14179435 Development of HyperSizer automation and load analysis module (re-announcement) Deadline19 Aug 2026 14179436 Repair work on cut slopes within Seocheon branch office Deadline10 Aug 2026 14179437 Agok-ri village road maintenance work Deadline10 Aug 2026 14180010 Pavement repair work in Ganghwa-gun area on National Route 48 Deadline11 Aug 2026 14180011 Manufacture and purchase of mixed aggregate for Wolgot-Pangyo double-track railway 3rd section new roadbed construction and other construction Deadline19 Aug 2026 14180015 Daegok Elementary School Children's Protection Area Maintenance Work on National Route 70 Deadline11 Aug 2026 14180016 Jungbangdae-ri Senior Protection Area Maintenance Work on Local Road No. 494 Deadline11 Aug 2026 14180017 Local road 404 Ungye 2-ri senior protection area maintenance work Deadline11 Aug 2026 14180018 Road resurfacing work along Indongbuk-gil, Gupyeong-dong Deadline11 Aug 2026 14180019 Total 4th (Chungju) road traffic facility repair work Deadline11 Aug 2026 14180028 Farm road repair work in 137 Segyo-dong area Deadline11 Aug 2026 14180029 26-Gyeong-Approach road drainage maintenance facility construction Deadline13 Aug 2026 14180030 26-Gyeong-Approach road drainage maintenance work disaster prevention (facility) Deadline19 Aug 2026 14180031 26-Gyeong-Approach road drainage maintenance work construction waste disposal Deadline19 Aug 2026 14180057 Hanbat Deul-gil, Ohm Industrial Road road surface maintenance work waste disposal service Deadline12 Aug 2026 14180059 [Cheonan] 2026 Cheonan area Maeju district pavement repair work Deadline11 Aug 2026 14180061 Emergency road maintenance work in preparation for disaster in the eastern part of Bupyeong-gu in 2026 (2nd annual unit price) Deadline11 Aug 2026 14180124 Steep slope collapse risk area maintenance project (Saenggeuk-myeon physiology) Deadline11 Aug 2026 14180125 Purchase of government-supplied materials for sewer pipe maintenance project (electricity and measurement control) in Wonbong-ri, Seongdong-myeon Deadline06 Aug 2026 14180126 Purchase of an eco-friendly mid-sized electric street sweeper Deadline11 Aug 2026 14180127 Steep slope collapse risk area maintenance project (Ssangjeong-ri, Maengdong-myeon) Deadline11 Aug 2026 14180128 Anpyeongcheon embankment road and access road maintenance work Deadline11 Aug 2026 14180129 Road retaining wall repair work at San 14-5, Jonam-dong Deadline11 Aug 2026 14180130 Purchase of government-supplied materials (wooden deck) for Valley Top nature observation road repair work Deadline13 Aug 2026 14180131 Unit price contract for road marking maintenance in the second half of 2026 (Region 2) Deadline12 Aug 2026 14180132 2026 Jeongseon Bridge 1 pavement repair work Deadline11 Aug 2026 14180133 Notice on submission of quotation for road maintenance work (unit price contract) in Deokjin-gu in the second half of 2026 Deadline11 Aug 2026 14180134 Unit price contract for road marking maintenance in the second half of 2026 (Region 1) Deadline12 Aug 2026 14180135 [Dangjin] Local road 622 Namwonpogyo and 1 other repair and reinforcement work Deadline11 Aug 2026 14180511 (RISE) Dongguk University Gyeongju Medical Center lecture building 2nd floor general lecture room remodeling construction work Deadline20 Aug 2026 14180521 Wanggok-myeon basic living base creation project (rural agreement) architecture, civil engineering, and mechanical work Deadline21 Aug 2026 14180522 National Industrial Complex 1 Ssamzie Forest infrastructure construction work (redevelopment around the sports site in Gongdan-dong) Deadline11 Aug 2026 14180523 (Tentative name) Donggok Elementary School school building new mechanical facility construction bidding notice (urgent) Deadline12 Aug 2026 14180524 (Tentative name) Donggok Elementary School school building new mechanical facility construction bidding notice (urgent) Deadline12 Aug 2026 14180525 Yudong village Dueokigol stonework installation work Deadline13 Aug 2026 14180526 (26th grade - 55th grade) 3rd barracks dormitory wall demolition work Deadline11 Aug 2026 14180546 Deokgye-dong 944 officetel new construction Deadline12 Aug 2026 14180547 Hyeonsan-myeon temporary government building construction (construction) Deadline12 Aug 2026 14180588 Incheon Metropolitan City Children’s Welfare Center Interior Information and Communication Construction Deadline13 Aug 2026 14180589 2026_Smart_Ecological Factory_Construction Project_Replacement of Flow Adjustment Organizer Deadline26 Aug 2026 14180590 [Urgent] Announcement of electronic bidding for Ahyeon Middle School swimming pool front repair construction work Deadline11 Aug 2026 14180717 AI-based research and job competency enhancement program operation service Deadline06 Aug 2026 14180718 Planning and research for the 2nd research-oriented hospital development project Deadline06 Aug 2026 14180719 Purchase of near-infrared, visible, and ultraviolet spectral ellipsoidal polarizers Deadline13 Aug 2026 14180720 Jincheon Sports Town Multipurpose Gymnasium A bleacher chair installation work Deadline18 Aug 2026 14180722 Jain Senior Welfare Center Construction Electrical Work Deadline13 Aug 2026 14180726 Electronic bidding notice for Dalsan 1-ri small park maintenance project construction Deadline14 Aug 2026 14180727 Gwangju Buk-gu Workplace Regional Self-Sufficiency Center Purchased 6 types of self-service (coin) washing machines and self- (coin) dryers Deadline19 Aug 2026 14180979 Park Rainwater Road Maintenance Project Deadline11 Aug 2026 14180980 Gwangju-Jeonnam-Jeju Environment Headquarters Watershed Management Department business vehicle rental (Musso EV, 1 unit) Deadline13 Aug 2026 14180982 Purchasing maintenance materials for ash treatment EP condensate recovery pump Deadline06 Aug 2026 14181096 World Robot Conference 2026 on-site support and ancillary work agency services Deadline10 Aug 2026 14181097 Construction waste disposal service for testing site parking lot expansion project Deadline11 Aug 2026 14181098 Equipment analysis center expansion design service Deadline31 Aug 2026 14181099 Jeonnam Gwangju Integrated Special Metropolitan Office of Education Jeonnam Student Education Center Safety Ladder Installation Work Deadline10 Aug 2026 14181100 2026 2nd plantation land mowing project (Nam Hoeryong District 3) Deadline11 Aug 2026 14181104 Implementation of new civil defense warning facility installation project (Mangyun, Yunnan) Deadline10 Aug 2026 14181105 2026 2nd plantation land mowing project (Nam Hoeryong District 2) Deadline11 Aug 2026 14181106 2026 2nd plantation land mowing project (Nam Hoeryong District 1) Deadline11 Aug 2026 14181107 [Re-announcement] Unit price contract for research materials for 26-27 donation research (SI-20260019, SI-20260020) Deadline10 Aug 2026 14181108 2026 2nd plantation land mowing project (Eoji district) Deadline11 Aug 2026 14181109 2026 2nd plantation land mowing project (Geochon district) Deadline11 Aug 2026 14181749 Seosunchang Agricultural Cooperative Soybean Comprehensive Processing Plant Jeongseon Facility and General Warehouse New Construction (Architecture, Civil Engineering) Deadline14 Aug 2026 14181751 [Anchor Project] Smart Farm Food Convergence and Outdoor Healing Training Center Greenhouse Environmental Improvement Construction Deadline11 Aug 2026 14181752 Jeongseon Yupyeong Hemp Folk Festival Parking Lot Construction Project Deadline11 Aug 2026 14181763 Construction of the Agriculture, Forestry and Livestock Quarantine Headquarters’ special research facility (BL3, BL2) integrated control center (communication) Deadline14 Aug 2026 14181793 2026 Youth Leap Talent Training Boot Camp Office Environment Improvement Construction (Architecture) Deadline20 Aug 2026 14181794 Buan Dam summit rest area improvement work Deadline11 Aug 2026 14181795 Yeoju Self-Agricultural High School Smart Greenhouse Construction Mechanical Equipment Construction Deadline11 Aug 2026 14181796 Seunghak Campus College of Arts and Physical Education Building 2 International Student Creative Space (S17-B105) construction (architecture) Deadline20 Aug 2026 14182068 2026 Technology Department field department working environment improvement construction contract Deadline13 Aug 2026 14182070 Off-street public parking lot construction in Wondang-dong Deadline11 Aug 2026 14182072 Goam Technoville niche parking lot construction project Deadline11 Aug 2026 14182073 Construction work to improve the educational and research environment for the 2026 school year (school expenses) Deadline13 Aug 2026 14182164 Dongyeongwol S/S Seokhang D/L Regenerative E reinforcement line 1 new construction supervision (PQ) Deadline23 Sep 2026 14182496 Ordered DER-AVM cable wiring and inverter interconnection test service (22EA) Deadline05 Aug 2026 14183085 2026 Pocheon Yangsu Construction Complex Commuter Bus Service Deadline12 Aug 2026 14183089 Shin-Kori Units 1 and 2 10th OH piping, equipment, and structure in-service inspection service Deadline08 Sep 2026 14183090 Purchase of 1 item of filter assembly from Wolseong 2-bal Equipment Engineering Department (A grade/manufactured/equivalent product) Deadline12 Aug 2026 14183091 2026 Yecheon Pumped Storage Power Plant Commute Bus Operation Service Deadline12 Aug 2026 14183092 Hanul 1-piece CE bolt/nut set 1 item (S grade/manufactured/equal) Deadline12 Aug 2026 14183093 Hanul 1-shot CE gasket and 6 other items (S grade/manufactured/equal) Deadline12 Aug 2026 14183094 Hanul 1-piece CE gasket 1 item (S grade/manufactured/equal) Deadline12 Aug 2026 14183096 1 item of rubber material tester (S grade/off-the-shelf/same product) Deadline12 Aug 2026 14183226 2026 Gangnam-gu Nonhyeon Senior Welfare Center Meal Service Food Material Supplier Bidding Notice Deadline20 Aug 2026 14183242 (26 Army - 42 Marines) 27, 28 ARK unit private consignment meal service Deadline25 Aug 2026 14183243 Announcement of veterinary quotation information for joint purchase of milk for school meals at Buyun Elementary School and two other schools in the second half of the 2026 school Deadline12 Aug 2026 14183244 Janggeum Middle School September 2026 Instructions for submitting a small estimate for purchasing food for school meals Deadline11 Aug 2026 14183246 2026 Jeongsan Middle School Table Tennis Club International Exchange Consignment Service 2nd Stage Specification Price Simultaneous Bidding Notice Deadline18 Aug 2026 14183247 September 2026 Submission of quotation for private contract to purchase corrosion for Oksan Elementary School school meals Deadline11 Aug 2026 14183248 (26 Army - 42 Marines) 27, 28 ARK unit private consignment meal service Deadline26 Aug 2026 14183254 [Emergency] Announcement of selection of an external transport consignment meal (bulk type) company for Korea University College of Education-affiliated middle school for the 2nd s Deadline18 Aug 2026 14183255 September 2026 Announcement on the submission of a small amount of quotation for the purchase of corrosion for school meals at Noksu Elementary School Deadline11 Aug 2026 14183257 Bidding notice for selection of 3rd consignment meal (bulk meal) supplier for Gyeonggi Creative High School for the 2026 school year Deadline18 Aug 2026 14183258 National Korea National University of Transportation Welfare Team Announcement of Bidding for Purchase of Meal Ingredients (Corrossed Foods) Deadline14 Aug 2026 14183261 Purchase and installation of school meal cooking robot at Muntae High School Deadline21 Aug 2026 14183262 September 2026 Announcement on submission of quotation for small quantities for purchase of corrosion for Maesan Elementary school meals Deadline12 Aug 2026 14183284 September 2026 Announcement on the submission of a small amount of quotation for the purchase of supplies (corrosives) for school lunches at Namsan Elementary School Deadline11 Aug 2026 14183285 Announcement of small quantity (unit price) quotation for liquefied petroleum gas (LPG) for school meals at Cheonan Eopseong High School in the second half of the 2026 school year Deadline11 Aug 2026 14183286 (Re-announcement) (New bid) Unit price contract for meal ingredients (agricultural products) from August to September 2026 Deadline11 Aug 2026 14183287 Soyang Middle School external transportation consignment meal service (bulk meal) service notice (re-announcement) for small quantity quotation submission guidance Deadline11 Aug 2026 14183289 Food truck service for the 2026 Heyeo Campaign Deadline13 Aug 2026 14183291 Sannam Middle School Convenience Meal Purchase Instructions for Submitting a Small Quantity Quotation Notice Deadline11 Aug 2026 14183293 Purchase of food for school meals at Muryong Middle School for September 2026 Deadline12 Aug 2026 14183299 Seoul Medical Center Nutrition Team Meal Ingredients (Fisheries) Unit Price Contract Deadline13 Aug 2026 14183870 Purchasing livestock products for the dormitory (Pureum Hall) cafeteria in August-September of the 2026 school year Deadline11 Aug 2026 14183874 Purchase of food ingredients for the cafeteria in the second half of the 2026 school year (industrial products, agricultural and fishery products, meat) Deadline13 Aug 2026 14183883 Emergency 4 cases including metal preservatives Deadline10 Aug 2026 14184247 Geoje City local water supply modernization project additional pipe network maintenance work Deadline13 Aug 2026 14184248 Geoje City local water supply modernization project block system supplementation construction Deadline13 Aug 2026 14184249 소천(정) 전처리수 탁도계 제조구매설치 Deadline13 Aug 2026 14184250 Bridge facility maintenance work (Geumodaegyo Bridge) Deadline11 Aug 2026