/480510/ 520*/510///封/500520组合圈夹布/530型型v540490油550o

*465//470510/530型o///520外径/500/硅胶*550/540490密封圈10480

540490/530*/520圈外/560480/胶510//10径/氟/500o/型570/550580

470/480/外径密封圈46510*//550型///硅胶510500530520o//540490*

20550 590封 **540490 胶*氟橡胶骨架油*氟25* *25550500

2825/16油/*480nfk骨架**25520/封540490优质22485*540 /**