Central Mining Institute http://www.gig.eu/eng/sc94/Regulation_of_the_Council_of_Ministers_from_30th_Apr_2004_on_the_products_allowed_for_the_use_of_mining_institutions.html Regulation of the Council of Ministers from 30th Apr., 2004 on the products allowed for the use of mining institutions eng Copyright © Główny Instytut Górnictwa. Mon, 23 Mar 2009 17:41:52 +0200 Central Mining Institute http://www.gig.eu/images/styles/application/gig.gif Central Mining Institute 50 http://www.gig.eu/eng/a285/Informations.html http://www.gig.eu/eng/a285/Informations.html Informations Regulation of the Council of Ministers from 30th Apr., 2004 on the products allowed for the use of mining institutions Sun, 20 Jul 2008 12:30:18 +0200