Determination of parts tolerances in friction knots of grey and nodular cast iron with thermal diffusion platings vanadium and chromeAlexander A. Veselovsky, Roman R. Dema, Olga B. Kalugina and Sergey P. NefedyevMATEC Web Conf., 129 (2017) 02043DOI: https://doi.org/10.1051/matecconf/201712902043