Man-made static magnetic fields are generated wherever DC currents are used, such as in electric trains or industrial processes such as aluminium production and in gas welding.
在使用直流电的地方即产生人为的静电磁场，例如在电车或诸如铝生产和气焊等工业操作程序中。
2
Welding stress and concaving deformation of man-hole of steel vessel influence directly welding quality and life of using.
钢制容器人孔的焊接应力及塌陷变形，直接影响容器的焊接质量和使用寿命。
3
With a dedicated digital precision welding head, an intuitive man-machine interface operation, simple and precise control.