| 026 | U4330 | HALLITE SEALS INTERNATIONAL LTD T/A I POLYTEK |
| 17-27B | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| D1514M | K0013 | HALL AND HALL LTD |
| BS1806-026 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-026 | K7766 | BRITISH STANDARDS INSTITUTION |
| D1514M | U4330 | HALLITE SEALS INTERNATIONAL LTD T/A I POLYTEK |