Prozenlul standard se refer? la m?rcile ?i condi?iile tehnice de calitate ale o?elurilor pentru rulmen?i, deformate plastic la cald sau trase la rece, cojite, ?lefuite, calibrate, livrate sub form? de, bare eu sec?iunea rotund?, p?trat? sau plat?, s?rm? s
STAS 1456/1-1989 history
1989STAS 1456/1-1989 STEELS FOR BALL, AND ROLLER BEARINGS Grades and technical requirements for quality