
Welding material for pressurized water reactor nuclear power plants-Part 1: Carbon steel covered electrodes for class 1, 2, 3 components
标准号:NB/T 20009.1-2010E
Welding material for pressurized water reactor nuclear power plants-Part 1: Carbon steel covered electrodes for class 1, 2, 3 components
标准号:NB/T 20009.1-2010E