冷轧采取了两种实验方案，它们是一次冷轧后进行退火和一次冷轧退火后再进行二次冷轧退火。
The two plans were taken on cold rolling. One is traditional cold rolling with one annealing.
研究了经铁素体区热轧后的IF钢板坯在随后的一次冷轧和两次冷轧工艺中所表现出的深冲性能规律。
After being rolled in ferrite area, the IF steel was proceeded once and twice cold rolling, then its deep drawing property was studied.
采用高标准Q235型冷轧钢，一次成型，承重力大，不易变形。
High standard Q235 type cold rolling, a molding, bearing capacity not easy to deformation.
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