trusco快照环孔钢直径R-20 10件小包 快照戒指小包 Y851-0020

Package: Bag
For holes
Nominal diameter: R-20
Secure ring (mm) d3: 21.5
Secure ring (mm) t: 1.2
Secure hole (reference) (mm) d1: 20
Secure hole (reference) (mm) d2: 21.0
Secure hole (reference) (mm) m: 1.15

弹簧钢（相当于S65C）

8G

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