Share to: share facebook share twitter share wa share telegram print page

United Nations Office for Project Services

United Nations Office for Project Services[note 1]
AbbreviationUNOPS
FormationDecember 1973 (as an office of United Nations Development Programme); January 1995 (as an independent agency)
TypeIndependent self-financing member of the United Nations family
Legal statusActive
HeadquartersUN City, Copenhagen, Denmark
Executive Director
Jorge Moreira da Silva
Parent organization
United Nations System
Websitehttp://www.unops.org

The United Nations Office for Project Services (UNOPS) is a United Nations agency dedicated to implementing humanitarian and development projects for the United Nations System, international financial institutions, governments and other partners around the world, with a focus on infrastructure, procurement and project management The organization's global headquarters is located at the UN City campus in Copenhagen, Denmark.[1] UNOPS delivers around  $3 billion worth of development projects for its partners every year. Its activities have ranged from managing the construction of schools in Afghanistan, to building shelters in Haiti, to procuring ambulances to support the Ebola response in Liberia.

UNOPS is a member of the United Nations System Chief Executives Board and Senior Management Group, the Environment Management Group (EMG), the United Nations Sustainable Development Group[2] and works closely with UN partners, governments, international financial institutions and multilateral development banks, such as: the World Bank, the Global Fund to Fight AIDS, Tuberculosis and Malaria, United Nations Department of Peace Operations, Government of Argentina, the Office of the United Nations High Commissioner for Refugees (UNHCR), the European Union, and the government of the United States.

History and mission

UNOPS was established in 1973 as part of the UNDP. It became an independent, self-financing organization in 1995. UNOPS concentrates its support in the areas of infrastructure, procurement, project management, human resources and financial management services. UNOPS often works in post-disaster and peace and security settings, developing countries and economies in transition. In December 2010, the United Nations General Assembly reaffirmed the mandate of UNOPS "as a central resource for the UN system in procurement and contracts management as well as in civil works and physical infrastructure development, including the related capacity development activities".[3] Examples of such works include building roads, schools, and health clinics; removing landmines; and providing expertise for holding elections.

A new headquarters of UNOPS opened in Copenhagen in May 2009.[4]

Today, UNOPS delivers around $3 billion worth of projects in more than 80 nations across the world.[5]

Financing

UNOPS is a self-financing organization. It covers direct and indirect costs by charging a fee on each project supported. UNOPS pricing policy outlines how the organization aims to finance its projects.[6] UNOPS is not-for-profit.[7]

Services

UNOPS offers implementation, advisory and transactional services in its five core areas of expertise:

  • Infrastructure
  • Procurement
  • Project Management
  • Financial Management
  • Human Resources

UNOPS provides specialized services to a range of partners, including: the United Nations, its agencies, funds and programmes; international financial institutions; governments; intergovernmental organizations; non-governmental organizations; foundations; and the private sector.

In 2023, UNOPS created more than 23 million days of paid work for beneficiaries. The organization supported its partners with the construction, design and/or rehabilitation of more than 187 kilometers of roads, 55 schools, and 7 hospitals and 49 health clinics, among others. UNOPS also procured and/or distributed more than US$1.6 billion worth of goods and services for its partners.[5]

UNOPS is the legal and administrative host for several organizations.[8] The following entities are currently under hosting agreements by UNOPS, grouped by theme:[9]

  • Health: RBM Partnership to End Malaria, Stop TB Partnership,[10] ATscale Global Partnership
  • Nutrition: Scaling Up Nutrition (SUN) Movement[11]
  • Water and sanitation: Sanitation and Hygiene Fund (established 2020); and previously Water Supply and Sanitation Collaborative Council – now defunct)[12]
  • Sustainable urban development: Cities Alliance
  • Disaster displacement: Platform on Disaster Displacement

In addition, UNOPS also managers several multi-stakeholder partnerships and initiatives, including:

UNOPS was involved in the response to the COVID-19 pandemic.[16]

In 2023 during COP28, UNOPS and the UN Office for Disaster Risk Reduction, were selected to co-host the secretariat for the Santiago Network for Loss and Damage.[17] The Santiago Network, established to address climate change impacts in developing countries, acts as a crucial connector between technical assistance and the Loss & Damage Fund, enhancing the capacity of these countries to manage climate-related losses and damages.

In 2024, the Secretary-General appointed UNOPS to operationalise the newly created Office of Senior Humanitarian and Reconstruction Coordinator for Gaza. Led by Sigrid Kaag, the office was created in response to the Israel-Hamas war in an effort to accelerate humanitarian relief consignments to Gaza through States which are not party to the conflict.[18]  

Governance

In 2008, UNOPS adopted a governance structure in line with General Assembly resolutions. Since then, the executive director reports directly to the UN Secretary-General and the Executive Board, and has the authority to apply United Nations staff rules and regulations to UNOPS staff. Since 2009 the executive director has been able to sign host country agreements with governments.

UNOPS is accountable to member states of the United Nations through its Executive Board, which it shares with the UNDP and the United Nations Population Fund (UNFPA).[19]

UNOPS is also accountable to the UN Board of Auditors who audit UNOPS on an annual basis.[20]

Transparency

In September 2011, UNOPS joined the International Aid Transparency Initiative (IATI), becoming the first UN body to publish operational data in the IATI format in October of the same year. IATI seeks to make information on aid spending easier to access, understand, and use. UNOPS, along with other prominent organizations such as the Gates Foundation, the World Bank, and the European Commission, contributes to this initiative by providing detailed, machine-readable data on their projects.

Project-level information, including financial transactions, is published monthly to the IATI Registry by UNOPS.[21] UNOPS also maintains an online platform, data.unops.org, which enhances the transparency of UNOPS operations.

Certifications

UNOPS attained a ISO 9001 quality management system certification in June 2011.[22]

UNOPS gained an ISO 14001 certification for its commitment to protecting the environment in 2013.[23]

UNOPS reports according to the Global Reporting Initiative (GRI) sustainability standards.[24]

Infrastructure

UNOPS partnership with the University of Oxford and UN Environment Programme

UNOPS has worked with the University of Oxford and UN Environment Programme in a number of collaborations that focus on enhancing the sustainability of infrastructure.[25] This includes the report Infrastructure for Climate Action. The report highlights the substantial role of infrastructure in generating greenhouse gas emissions and adaptation costs, accounting for 79% and 88% respectively.

The report advocates for fundamental shifts in the planning, delivery, and management of infrastructure to align with critical climate and development targets. It emphasizes the integration of nature-based solutions, which can tackle a broad spectrum of sustainable development challenges while mitigating the impacts of climate change, biodiversity loss, and pollution.

Procurement

In 2015, 2016, 2017, and 2018 UNOPS achieved gold level in sustainable procurement from the Chartered Institute of Purchasing and Supply.[26]

In 2022, the UNOPS was presented with the annual Sustainable Procurement and Supply Award by the UN High-Level Committee on Management's Procurement Network. This recognition highlights UNOPS' commitment to sustainable procurement practices that support social and economic development while protecting the environment.[27]

List of executive directors

No. Executive Director Assumed office Left office Country of origin
1 Reinhart Helmke January 1995 January 2003 Germany
Interim Gerald Walzer February 2003 August 2003 Austria
2 Nigel Fisher August 2003 October 2005 United Kingdom
Interim Gilberto Flores 14 November 2005 11 June 2006 Chile
3 Jan Mattsson 12 June 2006 10 June 2014 Sweden
4 Grete Faremo 01 August 2014 8 May 2022 Norway
Interim Jens Wandel 9 May 2022 13 April 2023 Denmark
5 Jorge Moreira da Silva 14 April 2023 incumbent Portugal

2022 allegations and reforms

In 2014, Secretary-General Ban Ki-Moon appointed Grete Faremo as head of UNOPS. Her appointment led to a change in direction for the organization. Between 2014 and 2021 its portfolio of projects expanded from $1.14 billion to more than $3.4 billion.[28][29][30] She bragged about how she immediately saw to it that "more than 1,200 pages of rules went into the trash" and that she would "rewrite (its) operational principles" in the name of running UNOPS more like a fast and agile business.[31] Under her tenure, UNOPS shed its former reputation as an invisible go-between meant to ease contracting. UNOPS found itself with a surplus of funds it could use for itself. However, Faremo was accused of managing the money incompetently at best, and corruptly at worst. As part of an initiative called the "Sustainable Investments in Infrastructure and Innovation", or S3i for short, millions of US dollars worth of donor money was given to contractors that had repeatedly failed to work on the projects they were given. The UN is expected to have to write down over $25 million in bad loans.[32]

Faremo's deputy Vitaly Vanshelboim was placed on executive leave in December 2021 as the United Nations Office of Internal Oversight Services investigated the allegations and audited the matter. Vanshelboim was later sacked in early 2023.[33] Faremo resigned in early May 2022[34] after an investigation by The New York Times drew attention to the problems under Faremo's tenure.[32] International development news publication, Devex and blogger, Mukesh Kapila, also wrote a series of articles on the matter.[35][36]

Jens Wandel was appointed acting executive director of UNOPS by the Secretary-General on 9 May 2022.[37] Wandel had served the UN in many different capacities over a long career, most recently as the Secretary-General's designate for the COVID-19 Response and Recovery Fund. Previously, he served as special adviser to the Secretary-General on UN Reforms and before that he was Director of UNDP's Bureau for Management Services. He was tasked with correcting the failures surrounding UNOPS S3i initiative and reforming the organisation. His plans to realign UNOPS were accepted by the executive board in June 2022.[38]

In April 2023, Jorge Moreira da Silva was appointed executive director on an initial two-year term.[39]

Notes

  1. ^ Other languages:
    • مكتب الأمم المتحدة لخدمات المشاريع (in Arabic)
    • 联合国项目事务署 (in Chinese)
    • Bureau des Nations Unies pour les services d'appui aux projets (in French)
    • Управление Организации Объединенных Наций по обслуживанию проектов (in Russian)
    • Oficina de las Naciones Unidas de Servicios para Proyectos (in Spanish)

References

  1. ^ "United Nations in Denmark". United Nations. Archived from the original on 2013-07-15. Retrieved 2010-02-15.
  2. ^ "UNSDG Members". UNSDG. Retrieved 2020-04-07.
  3. ^ "UN General Assembly Resolution 65/176". UN. Retrieved 2014-01-08.
  4. ^ "Strategic plan 2010-2013". UNOPS. Archived from the original on 2014-01-08. Retrieved 2014-01-08.
  5. ^ a b Implementation of the restated UNOPS strategic plan, 2022-2025
  6. ^ "Pricing policy". www.unops.org. Archived from the original on 2015-09-26. Retrieved 2015-10-13.
  7. ^ "Information disclosure". www.unops.org. Archived from the original on 2015-11-24. Retrieved 2015-10-13.
  8. ^ UNOPS (2021) Operational Instruction Ref. OI.IPS.2021.01 Hosting Engagements, Headquarters, Copenhagen.
  9. ^ "UNOPS Geneva". UNOPS. Retrieved 24 January 2020.
  10. ^ "About us". Stop TB Partnership. Retrieved 12 February 2020.
  11. ^ SUN (2018) Secretariat of the Scaling Up Nutrition (SUN) Movement Annual Financial Report of Expenditures 1 January 2017 – 31 December 2017
  12. ^ "WSSCC". Retrieved 30 December 2019.
  13. ^ "About". ICAT. Retrieved 2024-05-13.
  14. ^ "Three years of impact – and ambitious goals ahead". UNOPS. Retrieved 2024-05-13.
  15. ^ "UN General Assembly moves forward network for climate action". UNOPS. Retrieved 2024-05-13.
  16. ^ "COVID-19: Stay up-to-date with the latest on UNOPS support to…". UNOPS. 2022-06-24. Retrieved 2024-05-13.
  17. ^ "COP28: Joint statement on the future of the Santiago network". UNOPS. 2023-12-03. Retrieved 2024-05-13.
  18. ^ "Ms. Sigrid Kaag of the Netherlands - Senior Humanitarian and Reconstruction Coordinator for Gaza pursuant to Security Council Resolution 2720 (2023) | United Nations Secretary-General". www.un.org. Retrieved 2024-05-13.
  19. ^ "Executive Board". UNOPS. Retrieved 2024-05-13.
  20. ^ "Accountability". UNOPS. Retrieved 2024-05-13.
  21. ^ "About - - Organizations - IATI Registry". iatiregistry.org. Retrieved 2024-05-13.
  22. ^ "DP/OPS/2015/5-Annex 2". Strategy and Audit Advisory Committee Annual Report 2011. UNDP. Retrieved 6 September 2012.
  23. ^ "UNOPS commits to greening its infrastructure projects". UNOPS. Archived from the original on 21 July 2015. Retrieved 3 September 2014.
  24. ^ "GRI - Community members". www.globalreporting.org. Retrieved 2024-05-13.
  25. ^ "Infrastructure for climate action". UNOPS. 2021-10-12. Retrieved 2024-05-13.
  26. ^ "SPHS Annual Report 2016". Issue. UN Interagency on Sustainable Procurement in the Health Sector. Retrieved 18 July 2022.
  27. ^ "UN recognizes UNOPS procurement with global sustainability award". UNOPS. Retrieved 2024-05-13.
  28. ^ "2016 Annual report of the Executive Director" (PDF). United Nations. Retrieved 18 July 2022.
  29. ^ "2022 Annual report of the Executive Director" (PDF). United Nations. Retrieved 18 July 2022.
  30. ^ "2021 report on UNOPS net assets". UNOPS. Retrieved 18 July 2022.
  31. ^ Faremo, Grete (May 2019). "The Executive Director of a UN Agency on Running It Like a Business". Harvard Business Review. Retrieved 18 July 2022.
  32. ^ a b Fahrenthold, David A.; Fassihi, Farnaz (May 7, 2022). "A Pot of U.N. Money. Risk-Taking Officials. A Sea of Questions". The New York Times. Retrieved May 7, 2022.
  33. ^ Fassihi, Farnaz; Fahrenthold, David A. (2023-01-26). "U.N. Official Fired in Investment Scandal". The New York Times. ISSN 0362-4331. Retrieved 2024-05-13.
  34. ^ "Resignation of Executive Director". UNOPS. Retrieved 2024-05-13.
  35. ^ June 2022, David Ainsworth // 21 (2022-06-21). "DevExplains: An inside look at the UNOPS scandal". Devex. Retrieved 2024-05-13.{{cite web}}: CS1 maint: numeric names: authors list (link)
  36. ^ Courtney, Susanne (2022-05-12). "A Blogger Exposed a UN Agency's Wrongdoings. Its Boss Has Resigned". PassBlue. Retrieved 2024-05-13.
  37. ^ "UNOPS welcomes the announcement of Acting Executive Director". UNOPS. Retrieved 2024-05-13.
  38. ^ "Statement to the Annual Session of the Executive Board 2022". UNOPS. 2022-06-06. Retrieved 2024-05-13.
  39. ^ "Mr. Jorge Moreira da Silva of Portugal - Executive Director of the United Nations Office for Project Services (UNOPS) | United Nations Secretary-General". www.un.org. Retrieved 2024-05-13.

External links

Read other articles:

This article's lead section may be too short to adequately summarize the key points. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. (November 2020) 1832 United Kingdom general election ← 1831 8 December 1832 – 8 January 1833 (1832-12-08 – 1833-01-08) 1835 → ← outgoing memberselected members →All 658 seats in the House of Commons330 seats needed for a m…

3001: Odisea Final de Arthur C. Clarke Género Ciencia ficciónSubgénero Ciencia ficción Ambientada en 3001 Idioma InglésTítulo original 3001: The Final OdysseyPaís Reino UnidoReino UnidoFecha de publicación 1997 Formato PapelOdisea espacial2061: Odisea tres3001: Odisea Final[editar datos en Wikidata] 3001: The Final Odyssey (3001: La última odisea, 3001: Odisea final o 3001: El final de la odisea, dependiendo de la traducción) (1997) es una novela de ciencia ficción de A…

Supercoppa italiana 1995Roberto Brunamonti, capitano della Buckler Bologna, solleva il trofeoDettagli della competizioneSport Pallacanestro Edizione1ª OrganizzatoreLega Basket serie A Federazione FIP Data16 settembre 1995 LuogoCasalecchio di Reno ImpiantoPalaMalaguti Squadre2 VerdettiCampione Virtus Bologna(1º titolo) MVP Orlando Woolridge Cronologia della competizioneed. successiva →   Modifica dati su Wikidata · Manuale La Supercoppa italiana 1995 fu la 1ª superco…

MineConStatusAktifJenisPermainan videoFrekuensiTahunanTempatBeragamAcara pertama18 November 2011; 12 tahun lalu (2011-11-18)PenyelenggaraMojangMicrosoftSitus webwww.minecraft.net/en-us/live/ MINECON (terkadang ditulis MineCon) adalah siaran langsung dan acara pertemuan penggemar tahunan resmi yang diadakan oleh Mojang Studios dan Microsoft yang membahas mengenai permainan video Minecraft.[1][2] MineCon pertama kali diadakan pada tahun 2010 di Bellevue, Washington dengan nama…

U.S. House district for Arizona AZ-1 redirects here. For the aircraft, see AZ-1 Marvelette. For the car, see Autozam AZ-1. Arizona's 1st congressional districtInteractive map of district boundaries since January 3, 2023Representative  David SchweikertR–Fountain HillsArea58,608 sq mi (151,790 km2)Distribution91.5% urban8.4% ruralPopulation (2022)799,436[1]Median householdincome$91,562[2]Ethnicity69.9% White16.4% Hispanic6.1% Asian4.6% Black3.5% Native America…

Marutea do Norte Coordenadas: 17° 7' S 143° 11' O Geografia física País Polinésia Francesa Arquipélago Tuamotu Gambier Área 458  km² Marutea do Norte é uma das ilhas do arquipélago de Tuamotu-Gambier, pertencente ao Taiti.[1] Referências ↑ Journal of the Polynesian Society: Names Of The Paumotu Islands, By J.L. Young, P 264-268 Este artigo sobre Geografia da Polinésia Francesa é um esboço. Você pode ajudar a Wikipédia expandindo-o. vdeArquipélagos de Tuamotu-Gambi…

Опис файлу Опис Плакат фільму «Правда» Джерело https://www.imdb.com/title/tt8323120/mediaviewer/rm1560773377 Час створення 2019 Автор зображення GAGA і Le Pacte Ліцензія див. нижче Обґрунтування добропорядного використання для статті «Правда (фільм, 2019)» [?] Джерело https://www.imdb.com/title/tt8323120/mediaviewer/rm1560773377 М

Jean-Maurice MouratJean-Maurice Mourat.BiographieNaissance 23 mars 1948 (75 ans)LuçonNationalité françaiseActivités Peintre, guitariste classique, guitariste, compositeurAutres informationsInstrument Guitaremodifier - modifier le code - modifier Wikidata Jean-Maurice Mourat, né le 23 mars 1946 en Vendée, est un guitariste de musique classique et un ancien directeur de conservatoires de musique. Il écrit pour la guitare mais aussi pour d'autres instruments (flûte, piano...). Il est l…

هذه المقالة بحاجة لصندوق معلومات. فضلًا ساعد في تحسين هذه المقالة بإضافة صندوق معلومات مخصص إليها. مسيحيين محافظين في مظاهرة ضد المثلية الجنسية خلال مهرجان فخر المثليين، سان فرانسيسكو. تفاوتت العلاقة ما بين الدين والمثلية الجنسية بشكل كبير عبر الزمان والمكان، داخل وبين الأ…

Tomb under construction near Acre, Israel This article reads like a press release or a news article and may be largely based on routine coverage. Please help improve this article and add independent sources. (April 2022) The Shrine of ʻAbdu'l-Bahá is the location in Israel wherein the remains of ʻAbdu'l-Bahá, one of the central figures of the Baháʼí Faith, will be interred. Since his death in 1921, ʻAbdu'l-Bahá's remains have been located beneath one of the rooms of the Shrine of the B

MarquisZeng Jize曾紀澤Menteri untuk RusiaMasa jabatan12 Februari 1880 – 17 Agustus 1886Penguasa monarkiGuangxuPendahuluShao YouyuPenggantiLiu RuifenMenteri untuk Britania RayaMasa jabatan25 Agustus 1878 – 27 Juli 1885Penguasa monarkiGuangxuPendahuluGuo SongtaoPenggantiLiu RuifenMenteri untuk PrancisMasa jabatan25 Agustus 1878 – 28 April 1884Penguasa monarkiGuangxuPendahuluGuo SongtaoPenggantiXu Jingcheng Informasi pribadiLahir(1839-12-07)7 Desember 1839Meningg…

Former stadium in Walthamstow, East London Walthamstow StadiumThe front facade in 2005LocationChingford Road, London, E4 8SJEnglandCoordinates51°36′14″N 0°00′57″E / 51.603759°N 0.015948°E / 51.603759; 0.015948Date opened15 April 1933; 90 years ago (1933-04-15)Date closed16 August 2008; 15 years ago (2008-08-16)Race typeGreyhound racing Walthamstow Stadium was a greyhound racing track in the London Borough of Waltham Forest i…

Species of mammal Ethiopian hare Conservation status Least Concern (IUCN 3.1)[1] Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Lagomorpha Family: Leporidae Genus: Lepus Species: L. fagani Binomial name Lepus faganiThomas, 1903[2][3] Ethiopian hare range The Ethiopian hare (Lepus fagani) is a species of mammal in the family Leporidae. It was first described in 1903, by the British mammalogist Oldfield Thomas…

American rapper (born 1976) This article needs to be updated. Please help update this article to reflect recent events or newly available information. (September 2019) PliesPlies in 2008Background informationBirth nameAlgernod Lanier WashingtonAlso known asPilesBorn (1976-07-01) July 1, 1976 (age 47)[1]Fort Myers, Florida, U.S.GenresHip hopOccupation(s)RappersongwriterYears active2001–presentLabelsBig GatesSlip-n-SlideAtlantic Children1Websitepliesworld.com Musical artist Algernod…

This article contains numerous links to pages on foreign language Wikipedias. They are shown as red links with the language codes in [small blue letters] in brackets. Click on the language code to see the page in that language. Administrative districts of Galicia in 1914 The Kingdom of Galicia and Lodomeria, a crown land of Austria-Hungary, was subdivided into political districts (German: Bezirkshauptmannschaften) for administrative purposes, which were referred to in Polish as powiaty (administ…

James Henderson Berry. James Henderson Berry, född 15 maj 1841 i Jackson County, Alabama, död 30 januari 1913 i Bentonville, Arkansas, var en amerikansk demokratisk politiker. Han var den 14:e guvernören i delstaten Arkansas 1883–1885. Han representerade Arkansas i USA:s senat 20 mars 1885–3 mars 1907. Inbördeskriget Berry deltog i amerikanska inbördeskriget i sydstatsarmén. Advokat Krigsinvaliden Berry studerade juridik och inledde 1866 sin karriär som advokat i Arkansas. Berry arbet…

Pemerintah Transisi Federal Republik Somalia2004–2012 Bendera Lambang Lagu kebangsaan: Soomaaliyeey TosooIbu kotaMogadishuBahasa yang umum digunakanSomalia · ArabPemerintahanPemerintahan sementaraEra SejarahPerang Saudara Somalia• Piagam Transisi 6 April 2004• Pemerintahan baru 20 Agustus 2012 Kode ISO 3166SO Didahului oleh Digantikan oleh Pemerintah Transisi Nasional Pemerintah Federal Somalia Pemerintah Transisi Federal atau TFG (bahasa Inggris: Transiti…

Orang Jibuti DjiboutiensBendera JibutiJumlah populasica. 921,000-935,000[a]BahasaSomali, Afar, Arab, PrancisAgamaIslam (96%; Sunni · Sufisme),[1]Kelompok etnik terkaitOrang Eritrea, orang Etiopia, orang Somali, orang Tanduk Afrika lainnya, dan populasi Afro-Asiatik (orang Kushitik) lainnya. Orang Jibuti (Prancis: Djiboutiens) adalah orang yang mendiami atau yang berasal dari Jibuti. Negara ini terdiri dari dua kelompok etnik utama, yaitu orang Somali dan orang Afar. Terdapa…

Observatorium KerajaanNama alternatifRoyal Greenwich Observatory Kode observatorium 000 LokasiGreenwich, Royal Borough of Greenwich, Greenwich, Inggris Raya Koordinat51°28′40″N 0°00′05″W / 51.47783°N 0.00139°W / 51.47783; -0.00139Koordinat: 51°28′40″N 0°00′05″W / 51.47783°N 0.00139°W / 51.47783; -0.00139Ketinggian68 m (223 ft) Didirikan1675 Situs webhttps://www.rmg.co.uk/royal-observatory/ …

I materiali da costruzione sono tutti i materiali, naturali e artificiali, normalmente impiegati nel lavoro per realizzare costruzioni edilizie e opere d'ingegneria civile (strade, ponti, canali, dighe, gallerie). Esistono vari tipi di materiali da costruzione, sia naturali sia artificiali, a cui se ne aggiungono sempre di nuovi. Il numero di questi materiali, in passato era relativamente limitato, ma continuamente aumentano, mentre allo stesso tempo si è avuta una differenziazione dei sistemi …

Kembali kehalaman sebelumnya

Lokasi Pengunjung: 3.12.76.241