| 6535-20 | K4280 | BENJN R VICKERS & SONS LTD |
| 65351TEM20 | K4280 | BENJN R VICKERS & SONS LTD |
| R2075 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| R2075S1L8390 | K0640 | FREUDENBERG TECHNICAL PRODUCTS |
| BS1806-018 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-018 | K7766 | BRITISH STANDARDS INSTITUTION |