NB/T 20006.39-2017.Alloy steel for pressurized water reactor nuclear power plants-Part 39: Steel bars for integrated head package.NB/T 20006.39规定了压水堆核电厂一体化堆顶组件用合金钢棒的制造、检验和验收等要求。
NB/T 20006.39适用于压水堆核电厂一体化堆顶组件用40CrNi2Mo合金钢棒。...................
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