TY JOUR TI OVERVIEW OF TECHNOLOGIES TO IMPROVE PERFORMANCE CRITERIA OF CONTACT ELECTRIC CONNECTORS KW contact KW area KW technology KW treatment KW hardening KW mechanical engineering JO Transport engineering AU Derbush, D.A. AU Shalygin, M.G. AU Yevtukh, E.S. PY 2024 IS 2024 PB Bryansk State Technical University