00694naa#a2200169#i#4500001001500000005001700015011001400032100004100046102000700087200007900094210012500173215001000298608002700308675013700335700003000472856002200502EN\\bibl\9788620250525040046.7##a2686-9896##a20250428b2025####ek#y0engy0150####ca##aRU1#aDEPENDENCE OF THE COST OF STEEL AIR DUCTS ON THE DIAMETEReJournal article1#aAngarskcFederal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»d2025##a1 с.##aJournal article2local##aСанитарная техника. Санитарно-технические сооружения. Водоснабжение. 628#1aKuz'mingSergey Ivanovich4#aangtu.editorum.ru