![Ioannis Antoniadis, President of the Greek Stone Group International (SGI), was designated „Master of Stone“ Ioannis Antoniadis, President of the Greek Stone Group International (SGI), was designated „Master of Stone“](https://www.stone-ideas.com/wordpress/wp-content/uploads/2017/11/peoIoannis-Antoniadis_Marmomac17-1.jpg)
Ioannis Antoniadis, President of the Greek Stone Group International (SGI), was designated „Master of Stone“
![Handshake after signing the contract: Ioannis Antoniadis, President of SGI (left), and Ihsan Ugur Delikanli, President of BSTDB. Fotos: SGI - Stone-ideas.com Handshake after signing the contract: Ioannis Antoniadis, President of SGI (left), and Ihsan Ugur Delikanli, President of BSTDB. Fotos: SGI - Stone-ideas.com](https://www.stone-ideas.com/wordpress/wp-content/uploads/2016/10/SGI16_Black-Sea-Bank.jpg)
Handshake after signing the contract: Ioannis Antoniadis, President of SGI (left), and Ihsan Ugur Delikanli, President of BSTDB. Fotos: SGI - Stone-ideas.com
![Ο Γιάννης Αντωνιάδης για την επίσκεψη του Πρωθυπουργού, τα αρδευτικά Βεγορίτιδας και Χειμαδίτιδας και τις σταβλικές εγκαταστάσεις (video) Ο Γιάννης Αντωνιάδης για την επίσκεψη του Πρωθυπουργού, τα αρδευτικά Βεγορίτιδας και Χειμαδίτιδας και τις σταβλικές εγκαταστάσεις (video)](https://neaflorina.gr/wp-content/uploads/2019/03/DSC_0279-1.jpg)
Ο Γιάννης Αντωνιάδης για την επίσκεψη του Πρωθυπουργού, τα αρδευτικά Βεγορίτιδας και Χειμαδίτιδας και τις σταβλικές εγκαταστάσεις (video)
![Ioannis Antoniadis, President of the Greek Stone Group International (SGI), was designated „Master of Stone“ Ioannis Antoniadis, President of the Greek Stone Group International (SGI), was designated „Master of Stone“](https://www.stone-ideas.com/wordpress/wp-content/uploads/2017/11/peoIoannis-Antoniadis_Marmomac17-2.jpg)
Ioannis Antoniadis, President of the Greek Stone Group International (SGI), was designated „Master of Stone“
![Ioannis ANTONIADIS | Research Assistant | Electrical and Computer Engineering | The Centre for Research and Technology, Hellas, Thessaloníki | Information Technologies Institute (ITI) Ioannis ANTONIADIS | Research Assistant | Electrical and Computer Engineering | The Centre for Research and Technology, Hellas, Thessaloníki | Information Technologies Institute (ITI)](https://i1.rgstatic.net/ii/profile.image/328318097346562-1455288542502_Q512/Ioannis-Antoniadis-4.jpg)