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。
The effect of profiled aluminum quality on different design methods have been studied according to the design of profiled aluminum die diffluence hole, lead flow strip working belt and wayout belt.
从铝型材模具的分流孔、导流低工作带和出口带的设计入手，研究不同设计方法对型材质量的影响，提出了有效的改进方案。
The defects of the needle-shaped hole and narrow white threads on the strip surface have close relationship with oxide film of work roll.
工作辊表面氧化膜状态与带钢表面氧化铁皮细孔及小白条压入缺陷的产生有密切关系。
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