What are the contents of the rail approach?
Is the base of the welded rail or the field of the laying line?.
If you are into the rail welding base, to the selection of rail (rail according to the different choices of different welding tasks), welding inspection (inspection of rail in rail transport process has no damage), before steel rail welding straightening (rail end bend straightening), rust before welding (rail end, rail top surface, bottom of rail welding, prepare welding is left).
