00565naa#a2200169#i#450# EN\\bibl\91508 20260115162534.4 2071-7318 20250210b2025####ek#y0engy0150####ca RU ALUMINOSILICATE RAW MATERIALS OF THE STATE OF ERITREA FOR THE PRODUCTION OF SILICATE MATERIALS Journal article Belgorod Belgorod State Technological University named after V.G. Shukhov 2025 15 с. Journal article local Ghebremedhin K. W. Volodchenko A. N. zh-szf.ru