Algeria
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Burkina Faso
Burundi
Cameroon
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(Portugal)
Canary Islands
(Spain)
Central African Republic
Chad
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Côte d'Ivoire
Democratic Republic of the Congo
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Egypt
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Eritrea
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Gabon
Gambia
Ghana
Guinea
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Malawi
Mali
Mauritania
Mauritius
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(France)
Morocco
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Nigeria
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Rwanda
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São Tomé and Príncipe
Senegal
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South Africa
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Togo
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United Republic of Tanzania
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Geotechnical service
Laboratory
Structures and Infrastructures Auscultation Service
Engineering
Topography