The paper points out disadvantages and ambiguities of existing criteria for canon tubes condition determination as well as of for casting methods for their remaining service life. A possible approach in making decisions about corrective maintenance actions is given. particularly when concerning modern artillery weapons in which the application of criteria for determining tube service ... https://www.hindigyanvishv.com/deal-time-Universal-Steering-Wheel-Control-Input-Interface-APUNISW2-hot-grab/