How to understand the trolley wire collector?

The trolley line refers to the trolley line body and the matching current collector assembly. Usually, the user's understanding of the quality of the trolley line is often limited to the body, and the collector is considered to be a consumable product, which can be replaced with a new one........

Chuxing’s waste slag has become a cycle of resources

As of early September, seven privately-owned iron ore mining companies and a building materials company have settled in the vicinity of the Chuxing company. These companies are interested in the Chuxing company's phosphate ore waste and pyrite ore, and use these waste residues for producti.......