| 20-2/9-015 | U5171 | THORN E M I ELECTRONICS LTD |
| 50-216 | U2164 | JAMES WALKER & CO LTD |
| 71-0350 | U2164 | JAMES WALKER & CO LTD |
| A8-SA-019 | U5477 | OFFSHORE MARINE ENGINEERING |
| 50-216 | U8616 | JAMES WALKER & CO LTD |
| 71-0350 | U8616 | JAMES WALKER & CO LTD |
| B0401 | C7580 | JA-GASTECHNOLOGY GMBH |
| B0401 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| BO401 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| R136P85 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| BS1806-216 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-216 | K7766 | BRITISH STANDARDS INSTITUTION |
| JW50-216 | U2164 | JAMES WALKER & CO LTD |
| JW50-216 | U8616 | JAMES WALKER & CO LTD |
| R136P85 | U0028 | FREUDENBERG ANGUS |