00533naa#a2200193#i#450# EN\\bibl\10406 20250117221024.5 2223-4608 20160131b2016####ek#y0engy0150####ca RUS RU Cold extrusion of conical cups with cylindrical cavity Journal article Bryansk Bryansk State Technical University 2016 6 с. Journal article local Korobova N. Dmitriev A. Tolmachev N. naukaru.ru