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Dmytro Fedotov
"Stara Planina" Str. No.21,1st floor
8000 Burgas, Bulgaria
DFedotov@sigmatech.global
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Diyana Doncheva
"Stara Planina" Str. No.21,1st floor
8000 Burgas, Bulgaria
Cell: (+359 87) 858 0808
DDoncheva@sigmatech.global
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