4540 60sa12rs - -uu50ge35 70 bss do90es iko55 80b 关节轴承

-关节轴承 sa12rs 60 -5080b ge3555 45bssuu70iko 90esdo40

sa12rs 60 uuiko- 55 70-80b关节轴承50 90esge35 45do40bss