Kodirova NB. Lecturer of the Department of "OOT"
of the Fergana Polytechnic Institute Uzbekistan
Salikhanova D.S. Doctor of Technical Sciences., Professor of the Institute of General and Inorganic Chemistry of the Academy of Sciences of the Republic of Uzbekistan
Abdurakhimov S.A. Doctor of Technical Sciences., Professor
Tashkent Chemical-Technological Institute
Anorov R.A. Candidate of Technical Sciences, Associate Professor
of the Fergana Polytechnic Institute