NB/T 20006.18-2019 Alloy steel for pressurized water reactor nuclear power plants-Part 18: Mn-Ni-Mo alloy steel forgings for closure heads of reactor pressure vessel (English Version)
2019NB/T 20006.18-2019 Alloy steel for pressurized water reactor nuclear power plants-Part 18: Mn-Ni-Mo alloy steel forgings for closure heads of reactor pressure vessel