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Public Enterprise Elektroprivre da Srbije (EPS - Electric Power Industry of Serbia), the dominant electricity producer in Serbia, is a 100% state-owned public company. The Kolubara Mining Basin (MB Kolubara) with its open cast mines is one of 11 subsidiaries of EPS. In accordance with the Serbian Energy Strategy by 2015, one of the EPS priorities is a modernization and improvement of the efficien cy of EPS' coal mining operations at the Kolubara basin and significantly improvement the quality and uniformity of the...

Although the European Union’s directive about environment protection as WEEE and RoHS have been carried out in 2003, led solders are still in used in Serbia. In the aim to respect the European and world directives and laws, it is necessary to reduce a quantity of toxic element and to establish lead and cadmium free solders in production. In this paper it was presented lead-free alloys, which are used for ecological solders manufacturing and various applications. These are results in the frame of technology devel...