| 摘要 |
1308438 Pistons; disc brake hydraulic actuators ABEX CORP 7 Oct 1971 [6 Nov 1970] 46840/71 Headings F2E F2F and F2T The piston 12 of an hydraulic actuator for a pad disc brake comprises a body of thermosetting resin containing asbestos fibres. The piston directly abuts the backing plate 13 of a friction pad 15. |
