MIL-T-20157C (NOTICE-1), MILITARY SPECIFICATION: TUBE AND PIPE, CARBON STEEL, STAINLESS (23-SEP-1987) [S/S BY MIL-P-24691/1]
MIL-T-20157C (NOTICE-1), MILITARY SPECIFICATION: TUBE AND PIPE, CARBON STEEL, STAINLESS (23-SEP-1987) [S/S BY MIL-P-24691/1].