On July 25th, Tire World Network was exclusively informed that Youke Haoma has no truck and bus tire production line in China. In the future, Youke Haoma's card passenger tire business in China will focus on selling imported .......
.......
Each work cycle in.......
Recently, the first national new energy vehicle charging facility quality supervision and inspection center in the province was approved to be built in Su, and is expected to be completed next year.
At present, there is a la.......
East occasion gold mine in Zhenghe County, Fujian Province Shi Zhunzhen, is a tectonic erosion in hilly topography, terrain cut deep, the peak elevation of 827.4m, the lowest valley altitude 250m.
There are mainly I# main ore bodies in the .......
(1) applies to mining ore is very solid, and the surrounding rock or ore is very unstable, but the ore grade is high or very high value of rare metals or non-ferrous ore body.
(2) The essence of this mining method: it is stratified from .......
At present, the shallow mineral resources in the country are gradually depleted, and the deepening of mining depth has led to a more severe mining environment. The mining conditions of many deposits are complex and variable. The surface of a large number of mining wastes is heavily polluted.......
In the mining process, after the ore body is mined, a certain goaf area will be formed in the mining area, which will have a great impact on the subsequent mining work and the surrounding geological environment. The core idea of ​​the filling mining process is to replace.......
With the depletion of traditional energy sources, the importance of renewable energy such as wind and solar energy has become increasingly prominent. In the process of developing and utilizing new energy, its own instability has become a major obstacle to energy utilization. The energy st.......