
USED FOUNDRY SAND AS A RAW MATERIAL FOR THE CONSTRUCTION INDUSTRY
(STEF92 Technology, 2026, Alena Pribulova, Peter Futas, Jozef Petrik, Peter Blasko, Maria Mihalikova)
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(STEF92 Technology, 2026, Alena Pribulova, Peter Futas, Jozef Petrik, Peter Blasko, Maria Mihalikova)

(STEF92 Technology, 2026, Cristina Tota, Berar Cristian, Sala Florin)

(STEF92 Technology, 2026, Stanislava Misheva, Kliment Naydenov)

(STEF92 Technology, 2026, Oleksiy Davydov, Nataliia Omelchenko, Alla Piatkova, Hanna Napadovska)

(STEF92 Technology, 2026, Daniel Livramento, Desiderio Batista, Paula Gomes da Silva)

(STEF92 Technology, 2026, Alecsa Cristina)

(STEF92 Technology, 2026, ASIMOPOLOS LAURENTIU, ADRIAN-ARISTIDE ASIMOPOLOS, NATALIA-SILVIA ASIMOPOLOS)

(STEF92 Technology, 2025-12-27, Kristina Dineva, Tatiana Atanasova)

(STEF92 Technology, 2025-08-15, Inese Skapste, Gunta Grīnberga-Zālīte, Andra Zvirbule, Ilze Vircava, Kristiana Skutele)

(STEF92 Technology, 2025-12-27, Jedrzej Minda, Mateusz Pruszczak)

(STEF92 Technology, 2025-12-27, Alina Mihalcea, Ana-Maria Chirosca, Liliana Rusu)

(STEF92 Technology, 2025-12-27, Ionut Voicu, Nicoleta Acomi, Fanel-Viorel Panaitescu, Mariana Panaitescu)

(STEF92 Technology, 2025-08-15, Teodor Mateoc-Sîrb, Nicoleta Mateoc-Sîrb, Codrusa Chis, Oana Maria Sicoe-Murg, A. D. Copcea)

(STEF92 Technology, 2025-12-27, Ionut Ionut Ciobanu, D. Pislaru Pislaru, George Cristian Lazaroiu)

(STEF92 Technology, 2025-08-15, Mariana Panaitescu, Fanel-Viorel Panaitescu, Voicu Ionut, Neagu Ionut-Dragos)

(STEF92 Technology, 2025-08-15, Nataliia Zhukovska, Viktor Moshynskyi, Viktor Zhukovskyy, Vladyslav Zhylchuk)

(STEF92 Technology, 2025-08-15, Gulnur Abdikarimova, Lyazzat Shamganova, S. A. Syedina)

(STEF92 Technology, 2025-12-27, Kristen Bellisario, Christine Elliott)

(STEF92 Technology, 2025-08-15, Daniela Rus, Cristian Radeanu, Ciprian Jitea, Claudia Miron, Ionel Barbul)

(STEF92 Technology, 2025-12-27, Inga Straupe, Līga Liepa, J. Freimanis, Dagnija Lazdiņa)

(STEF92 Technology, 2025-08-15, Ionel Samfira, M. Horablaga, L. Cojocariu, Elena Mirela Samfira, Cristian BOSTAN)

(STEF92 Technology, 2025-12-27, Valentyna Voronkova, Vitalina Nikitenko, Roman Ivanovych Oleksenko, Dmytro Mishchenko, Natalia Zakharova, O Shokarev)
(STEF92 Technology, 2025-08-15, Christina Mickrenska, Vasil Cvetkov)

(STEF92 Technology, 2025-08-15, Toader Cosmina-Simona, Feher Andrea Ana, Cosmin Sălășan, S rbulescu Elena Claudia, Dumitrescu Carmen Simona)

(STEF92 Technology, 2025-08-15, Alina Raileanu, Liliana Rusu, Eugen Rusu)

(STEF92 Technology, 2025-08-15, Szymon Ziaja)

(STEF92 Technology, 2025-12-27, Marius-Victor B rsan, Diana Dogaru Dogaru, Laura Lupu, Robert Hrițac)

(STEF92 Technology, 2025-08-15, Dănuț Grecea, Cosmin Colda, Gabriela Pupăzan, Adriana Andriş, Alexandru Beldiman)

(STEF92 Technology, 2025-08-15, Marius Darie, Tiberiu Csaszar, Sorin Burian, Cosmin Colda, Danus Grecea)
(STEF92 Technology, 2025-08-15, Kristina Dineva, Tatiana Atanasova, Velizar Varbanov)

(STEF92 Technology, 2025-12-27, Michal Kraus, Ingrid Šenitková, Petra Machova)

(STEF92 Technology, 2025-08-15, Cornel Boanta, Ion Gherghe, Alexandru Cămărăşescu, Florin Radoi)

(STEF92 Technology, 2025-12-27, Vivita Puķīte, Dainora Jankauskiene, Sergio Antonio Neves Lousada)

(STEF92 Technology, 2025-08-15, Olgert Gjuzi, Rrapo Ormeni, P.N. Naço, Donald Mucaj, Dashamir Gega)

(STEF92 Technology, 2025-08-15, Adam Čítek, Milan Hola, David Čítek, Petr Sejkot)

(STEF92 Technology, 2025-12-27, Traian Ciprian Stroe, Liliana Panaitescu)

(STEF92 Technology, 2025-08-15, Vlad-Alexandru Lautaru, Alexandru Simion, Angelica-Nicoleta Găman, Sorin-Victor Simion Kovacs)

(STEF92 Technology, 2025-12-27, Alexandru Banescu, Alexandru Nicolae Bizu, Paula Pindic, Adrian Burada, Cristina Despina)

(STEF92 Technology, 2025-08-15, Irina Fedorova, Narine Hayrapetyan, Elizaveta Chezhina, Mikhail Spitsyn, Grigory Fedorov)

(STEF92 Technology, 2025-12-27, Georgeta Pop, Ilinca Imbrea, Ioana Alina H nda, Constatin Lungoci, Veronica SARATEANU)

(STEF92 Technology, 2025-08-15, Slavka Mechkarova)

(STEF92 Technology, 2025-12-27, A. Bluszcz, Katarzyna Tob r-Osadnik, Aleksandra Mierzejowska, George Hloupsis)

(STEF92 Technology, 2025-12-27, Aidar Kuttybayev, Volodymyr Khomenko, Олександр Пащенко, Valerii Rastsvietaiev, M. T. Arshidinova)

(STEF92 Technology, 2025-12-27, Sorina Ropciuc, Viorica Bulgaru, Florina Dranca, Daniela Oana Pauliuc, Olga Smerea)

(STEF92 Technology, 2025-08-15, Szymon Labojko, Bartosz Stypinski, Agnieszka Malinowska)

(STEF92 Technology, 2025-08-15, Nikolay Hristov, Gergana Meracheva, Efrosima Zaneva-Dobranova)

(STEF92 Technology, 2025-12-27, Elisa Quarta, Matteo Calcagnile, Pietro Alifano, Irma Del Piano, Gian Piero Di Sansebastiano, Loredana Stabili)

(STEF92 Technology, 2025-12-27, Barbora Doušová, Eva Bedrnová, Katerina Maxovaf, Miloslav Lhotka)

(STEF92 Technology, 2025-12-27, Francesco La Barbera, Carmela Altamura, Roberta Riverso)

(STEF92 Technology, 2025-08-15, Oana-Maria Sicoe-Murg, Nicoleta Mateoc-Sîrb, Teodor Mateoc)