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1·According to diameters, it adopts two, three, four or six-jaw hauling machine and saw or planetary cutting machine.

根据管径大小，牵引机分别为二爪、三爪、四爪、六爪，切割机分别为锯片式或行星式。

2·In this paper, a new type machine of correcting strip steel by hauling and bending is introduced briefly. The authors also analyse its limitation and put forward improving measure.

简要介绍了一种新型的拉伸弯曲矫直机，分析了设备的不足之处并提出改进措施。

3·The hauling system is adopted in accordance with the results of the study. Critical equipment, such as the large tonnage winch and passive unreeling machine, are manufactured.

通过研究，采用了双线往复门架式牵引系统，自主研制了能实现均衡放索的大吨位主牵引卷扬机、被动放索机构等关键机具。