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。
The drill hole size selected should provide sufficient representative sample material for analysis and reference.
该钻孔尺寸选定应提供足够有代表性的样本，剖析材料和参考。
The drill hole size selected should provide sufficient representative sample material for analysis and reference.
该钻孔尺寸选定应提供足够有代表性的样本，剖析材料和参考。
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