| 50-010 | U2164 | JAMES WALKER & CO LTD |
| 50-010 | U8616 | JAMES WALKER & CO LTD |
| B0385 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BO385 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BS1806 | K7766 | BRITISH STANDARDS INSTITUTION |
| B0385 | L6427 | MOBILE VALVE REPAIRS |
| ESE00W7005 | K0656 | BAE SYSTEMS (OPERATIONS) LIMITED |
| BS1806-010 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-010 | K7766 | BRITISH STANDARDS INSTITUTION |
| JW50-010 | U2164 | JAMES WALKER & CO LTD |
| JW50-010 | U8616 | JAMES WALKER & CO LTD |