Disadvantages

What are the advantages and disadvantages of mine electric locomotives as necessary equipment for mining today?

Mine electric locomotive, also known as an electric train, refers to a train that obtains electricity from a power supply network (contact network) or a power rail, and then drives the vehicle with a

In general, the mechanical properties of hot-rolled than cold-rolled better, after heat treatment of steel, its tensile strength, plasticity, toughness will be improved, in addition, the important poi