joining techniques (including welding and bonding), brake systems, wheel sets and draw gear, non-destructive testing techniques and maintenance activities on specific components of freight wagons for the transport of dangerous goods such as tanks and valves.
ühendamistehnoloogiad (sh keevitamine ja kokkuliitmine), pidurisüsteemid, rattapaarid ja veoseadmed, mittepurustavad katsemeetodid ja kaubavagunite selliste konkreetsetel osade hooldustoimingud, mis on ette nähtud ohtlike kaupade veoks, nt tsisternid ja klapid.