
Welding material for pressurized water reactor nuclear power plants-Part 9: Carbon steel wires and fluxes for submerged arc welding of class 1, 2, 3 components
标准号:NB/T 20009.9-2013E
Welding material for pressurized water reactor nuclear power plants-Part 9: Carbon steel wires and fluxes for submerged arc welding of class 1, 2, 3 components
标准号:NB/T 20009.9-2013E