Wytwornia Filtrow "PZL-Sedziszow" S.A. (Filter Manufacturing Plant) has been established at the beginning of 1939. Since 1955 it has became the leading Polish manufacturer of various filters and their elements. The plant is located in South-Eastern Poland, at the crossing of international routes E40 (West-East) and E 371 (Baltic ports-Slovakia) and between the international airports of Cracow and Rzeszow. Wytwornia Filtrow "PZL-Sedziszow" S.A. is a public joint-stock company fully possessed by the Polish Ministry of Treasury. At the present the company produces filters and their elements for (among others): automotive industry aviation industry building machines agricultural machines hydraulically driven equipment railways mining industry, industrial vacuum cleaners of its own designs and designs supplied by its partners The production is organised and controlled according the requirements of DIN EN ISO 9001 and ISO/TS 16949:1999 standards. A significant share of sales is directed to foreign markets, especially European Union countries.