Lytviak, O., Komar , S., Derevyanko , O. and Durieiev , V. 2021. Devising quality control criteria for manufacturing control valves of the type «nozzle-flap» . Eastern-European Journal of Enterprise Technologies. 1, 1 (109) (Feb. 2021), 27–34. DOI:https://doi.org/10.15587/1729-4061.2021.224918.