ÖNORM EN ISO 12153
ÖNORM EN ISO 12153 (Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of nickel and nickel alloys - Classification)· ONORM (オーストリア) · 21 材料
ÖNORM EN ISO 12153 (Welding consumables - Tubular cored electrodes for gas shielded and non-gas shielded metal arc welding of nickel and nickel alloys - Classification)· ONORM (オーストリア) · 21 材料