FED GGG-H-211D

FED GGG-H-211D HELMETS, WELDERS'; HANDSHIELD, WELDING; AND PLATES, WELDING (S/S BY ANSI/ASSE-Z87.1-2003) (SUPERSEDING GGG-H-211C AND QPL-GGG-H-211-46)

standard by Federal Specifications and Standards, 07/19/1985