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| BS4518 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN02-337-1893-57-MN70 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-1893-57-MN70 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| BS4518-1893-57 | K7766 | BRITISH STANDARDS INSTITUTION |
| U80008833 | K0107 | MACTAGGART, SCOTT & CO. LTD |
| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES337-1893-57-MN70-(N73B) | L6427 | MOBILE VALVE REPAIRS |
| NES337-1893-57-MN70-(N73B) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |