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Fix the connection plate of foundation bolt with nut.
将地脚螺栓连接板用螺母紧固。
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Cover is fixing on the tube plate with some sealed gasket by bolt.
端盖用螺栓将它们固定在管板上并加入垫片密封。
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Cover is fixing on the tube plate with some sealed gasket by bolt.
端盖用螺栓将它们固定在管板上并加入垫片密封。
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