The cold-bent pipes with different diameters must be equipped with the pipe-bending dies matching with them.

不同管径的冷弯管需配置与之匹配的弯管模具。

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This paper introduces the producing and technology characteristics of the square and rectangular double-welded seam pipe. And designing of the pass parameters of the cold-bent channel steel.

介绍了双焊缝方矩形钢管生产技术的特点及冷弯等边槽钢孔型设计参数。

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Having indulged a while in this sedative, she raised her bent body, took the pipe from her lips, and while gazing steadily at the fire, said very deliberately -- You are cold;

她在这份镇静剂里沉迷了一会儿后，便直起了弯着的腰，从嘴里取下烟筒，一面呆呆地盯着炉火，一面不慌不忙地说：“你很冷；

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