Urea prices steadily dropped
At present, the national urea price gap is relatively small, some urea production areas have greater resistance, and there is no centralized demand in the local market. Therefore, the sales pressure will not be significantly relieved in recent days, and.......
The beneficiation efficiency is a comprehensive indicator indicating the effectiveness of the beneficiation process. When there is no selection, its value is zero. When the best ideal sorting effect is achieved, its value is 100%. There are two kinds of calc.......
Grinding is a two-stage and two closed-circuit process. The final grinding grain size is less than 0.074mm73%. The grinding process is shown in the following figure:
China's tech giant Tencent Holdings Ltd has become the world's 10thbiggest publicly traded company by market value.
China's booming auto market has enabled Chinese and foreign automakers that are constantly running in. They have begun to deeply realize that "there are great joys, and the struggle is lost." The principle of "Joint Venture Harmony" has become the greatest desire o.......