Recently, China's foreign market for titanium dioxide has shown a good state. According to statistics, the export of titanium dioxide in China was only 380,000 tons in 2011. By 2016, the annual export volume of titanium dioxide in China has reached more than 720,000 tons, an increase of 360,000 -----
The current mining methods for steeply inclined very thin veins are mainly shallow hole retention method and wall filling method. The shallow hole retention method has the advantages of simple mining process and low labor intensity, but the ore depletion rate is high, the ore grade is low, and the -----
On July 11, the official data of China Automobile Association was released. Data show that in June 2017, the total sales volume of trucks was 290,700, a decrease of 4.5% from the previous month and a year-on-year increase of 21.71%. In the first six months, trucks sold a total of 1.808 million veh-----
This kind of development scheme is generally applicable to small mines where the inclination of the ore body is slow, and it extends long in the oblique direction, or the geological reserves are not large and the production capacity is not large. In small mines, due to various conditions, the specif-----
Nowadays, the weather is getting warmer and warmer. Many radiators also have some problems after they are stopped. Therefore, it is necessary to install a heating cooker on the side of the house. This is a good comparison. The radiators look quiet and not used. In fact, the radiator is also a consum-----
Weichai Power's traditional main business has developed steadily, and outreach and mergers have promoted a diversified layout. The company's traditional business is in the field of heavy trucks. The company has a complete powertrain industrial chain, namely "Weichai Heavy Truck E-----
The mining work of the shallow hole retention method includes: rock drilling, charge blasting, ventilation, partial ore deposit, bristles, flat field and large amount of ore mining. Mining mining is carried out from the bottom up, and the height of each layer is generally about 2-3 meters. Use sha-----