- malta di trass
- трассовый раствор
Dizionario di costruzione italiana-russo. 2013.
Dizionario di costruzione italiana-russo. 2013.
Mining in Austria — is an industry on the decline. After a period of postwar expansion, mineral production has stagnated in recent decades, and metals mining continues to decline, because of high operating costs, increased foreign competition, low ore grades, and… … Wikipedia