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Publikováno v:
Goriva i maziva : časopis za tribologiju, tehniku podmazivanja i primjenu tekućih i plinovitih goriva i inžinjerstvo izgaranja
Volume 52
Issue 2
Volume 52
Issue 2
Beside purchasing crude oil maintenance cost is the second major element of refinery operational expenditures and hence its influence on refinery profit margins is very high. According to a comprehensive US survey it is estimated that about 40% of re