PN EN ISO 12153
PN EN ISO 12153 (Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of nickel and nickel alloys - Classification)· PN (ポーランド) · 21 材料
PN EN ISO 12153 (Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of nickel and nickel alloys - Classification)· PN (ポーランド) · 21 材料