... 6m fixed length with UT Article: 42CrMo, S45C, forged round steel bar Grade:42CrMo, S45C, AISI 1045, 20CrMo, ... government, first-choice updating and upgrading products for national key industries of machine, locomotive, ship making, oil, chemical ... by national defense construction, defense production and national key construction.Processing flow: Electric arc furnace meltingrefining furnacevacuum ...