NF EN ISO 12153
NF EN ISO 12153 (Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of nickel and nickel alloys - Classification)· AFNOR NF (フランス) · 21 材料
NF EN ISO 12153 (Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of nickel and nickel alloys - Classification)· AFNOR NF (フランス) · 21 材料