https://fdrsystem.com/wp-content/uploads/2021/06/1621441108290.jpeg1060800sergio.nolimitshttps://fdrsystem.com/wp-content/uploads/2021/03/logo2-259x300.pngsergio.nolimits2021-06-15 11:45:172021-06-15 11:45:17FDR SYSTEM, New patent in the oil sector.
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