Traction height is a main index in the design and production of Narrow Gauge Mine Car and electric locomotive, the use of 320mm traction height equipment, transport equipment are implemented by the national and industry standards, if you transform the product traction height has changed greatly, the first problem is that it is difficult to connect with other Mine Cars and electric locomotives, there will be a series of problems such as Narrow Gauge Mine Car fall off. Therefore, the technical update must be familiar with the national and industry standards.
