Pingdu gold mine-free stay pillar mining method, greatly reducing the ore loss and dilution, significantly improved stope production capacity and create a better economic efficiency. I. Problems in the mining of the retained ore column Pingdu City Gold Mine has more than 30 veins, of which the No ....
Cobalt-rich crusts is another deep-sea mineral resources following the manganese nodules are found in human, it is grown on the slopes of the sea depths of 500-3000m hard bedrock "shell-like" deposits, because of its rich cobalt named. It is estimated that the seabed is 6.35 million km 2 ....
It took more than a hundred years from the discovery of titanium to the production of pure products. Titanium is really used, and knowing its true face is something after the 1940s. In the ten-kilometer-rich stratum of the geographical surface, titanium contains up to six thousandths, which is 6 ti ....
one. Beneficiation method of copper sulfide nickel ore The most suitable method for the beneficiation of copper-copper- nickel ore is flotation, and magnetic separation and re-election is usually an auxiliary beneficiation method. When flotation of copper-nickel ore, a collector and a foaming agen ....
Nie Bingqiang after 80 is the market regional manager of Jiangxi Dalong Heavy Industry Co., Ltd. and has won the company's sales champion for three consecutive years. Even though he is young, he has accumulated seven or eight years of experience in the sales of agricultural machinery products. ....
As a leading enterprise in China's construction machinery industry, Sany Heavy Industry is currently the world's only supplier with full hydraulic, hydro-mechanical compound, pure mechanical, and hydraulic mechanical grader R&D and production capabilities. In China, one of the two grade ....
From March 30 to April 1, the 2017 Tianjin International Passenger Transportation Equipment and Technology Exhibition (abbreviation: Tianjin Bus Show) will be held at the Tianjin Meijiang International Convention and Exhibition Center. As an annual industry event, this exhibition also attracted th ....