Underground, suburban train and cog-wheel train
From the ’80s, more and more work was given by BKV and MÁV. This was the reason of expanding continuously and became more experienced as well as competent at dealing with the underground (we knew all errors of the old Russian metros), suburban trains and even buses. As the years passed, more and more components were produced, (contractors, copper contacts, arc vaccinator keratins, inverters, even engines were renewed) naturalized, and ransomed onto Hungarian components (e.g. mirror driver of Combino) which were made in the country with domestic workforce and domestic stocks.