TY JOUR TI STUDYING THE FEATURES OF GLASS FORMATION OF ENAMEL FRITS FOR STEEL COVERING PANELS KW enamel coating KW glass formation patterns KW structural indicators JO Technique and technology of silicates AU Fanda, A.Y. AU Vilbitskaya, N.A. PY 2024 IS PB Individual Entrepreneur Svetlana Vasilievna Samchenko