The formula of drawing force for cold-drawn inner fin tube is derived with slab method in this paper.

采用工程法推导了冷拔内直筋管拔制力的计算公式。

youdao

The formula of drawing force for cold-drawn inner fin tube is derived with slab method in this paper.

采用工程法推导了冷拔内直筋管拔制力的计算公式。

youdao