直线式拉丝机是金属丝冷拔的生产设备，结构庞大，控制要求复杂。
Straight wire drawing machine is cold drawing production equipment for metal wire . It is in huge structure and sophisticated control.
实验表明，理论计算值与实测值较吻合，可为冷拔内螺旋凸筋管的拔制设备选型提供理论依据。
The experiment result shows that the theoretical values are close to those measured, which provides a theoretical basis for internal-ribbed pipe cold-drawing equipment type selecting.
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