balance cock screw摆夹板螺丝

bottom balance endpiece screw摆下托钻螺钉

balance spring stud screw游丝外栓螺钉

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balance wheel set screw[机] 平衡轮固定螺丝

balance ring stud screw游丝外栓螺钉

SCREW BALANCE螺丝摆轮

balance e spring stud screw游丝外栓螺钉

balance wheel oil cover screw[机] 平衡轮注油孔盖螺丝