NF A81-301:2011 Welding consumables - Technical delivery conditions for filler materials and fluxes - Type of product, dimensions, tolerances and markings.
2011NF A81-301:2011 Welding consumables - Technical delivery conditions for filler materials and fluxes - Type of product, dimensions, tolerances and markings.
0000 NF A81-301:2004
1997NF A81-301:1997 Welding consumables. Technical delivery conditions for welding filler metals. Type of product, dimensions, tolerances and marking.