I bored a hole so that the fixing bolt would pass through.

我钻了个孔，好让固定插销穿过去。

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Using exposed upper flange fixing bolt which makes it convenient to replace rubber plate.

上箱法兰固定螺栓采用外露式，便于更换橡胶板。

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The bearing capacity of expansion bolts is lower than chemical-fixing bolt, but it is economical.

膨胀螺栓与化学螺栓和化学植根螺栓强度虽然较低，但其经济性非常好。

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