TY JOUR TI ACCURACY OPENING OF HOLES AFTER DRILLING KW holes KW flange joints KW large-size equipment KW drilling KW sinking KW hole accuracy KW technological heredity. JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Goldobina, V.G. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov