TY JOUR TI Technology to ensure impermeability in fixed split metal joints according to two-stage circuit of design-technological pre-production KW operation property KW design-technological pre-production KW technology for impermeability support KW impermeability KW technological support KW surface layer quality in machinery JO Science intensive technologies in mechanical engineering AU Yeryomenkova, I.V. PY 2021 IS 2021 PB Bryansk State Technical University