B. Lateral rim of screw hole on CSBP is a weak area.

钉孔外侧缘是钢板薄弱和应力集中部位。

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Should be installed in the Start strip of each screw hole in the middle.

在起始条的每个需安装螺钉的孔中间，用记号笔作记号，并取下起始条。

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Meanwhile, please check the production sample customer provided and the spec of screw hole.

同时，请查看客人提供的上次大货样品，再次核对螺丝孔规格。

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