On the basis of the characters of HG - II myriametre rail welder and thetechnological request of rail gas pressure welding in the field, a ra.

根术标准和施工工艺特点,在客运专线铺轨基建造全自动的长钢轨焊接流水生产线,总长钢轨闪光接触焊的施工关键术。