Spring lock washer with adjustable inside and outside diameters.

内径和外径都可调整的弹簧锁垫圈.

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His bike has a spring lock.

他的自行车用的是弹簧锁.

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This anti - theft door has a spring lock.

这个防盗门安有弹子锁.

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Top view of spring lock washer or spacer with adjustable inside and outside diameters.

内径和外径都可调整的弹簧锁垫圈的俯视图.

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