STUDS, WELDING, & ARC SHIELDS (FERRULES); TYPE V, CLASS 1, 4, 5, 5A, CORROSION-RESISTANT STEEL, FOR DIRECT ENERGY ARC WELDING (SUPERSEDING MIL-S-24149/3C) (S/S BY NASM24149/3)
螺柱、焊接和电弧屏蔽(套圈);V型 1、4、5、5A级 耐腐蚀钢 用于直接能量电弧焊(取代MIL-S-24149/3C)(由NASM24149/3制成)