NF A81-325*NF EN ISO 636:2017 Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification
2017NF A81-325*NF EN ISO 636:2017 Welding consumables - Rods, wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels - Classification