| 2. | Welding equipment consist of frame , automatic tracing stucture , automatic submerged arc - welding system and flux automatic recycling equipment , carry through automatic tracing and continues welding in the joins of steel cylinder 焊接速度快,劳动生产率高,设备自动化程度高,在焊接过程中,可任意改变焊接速度,设备占地面积小 |