Gold mining

Gold mine type diversification, determines the way of exploitation are not the same. The rock gold mine is mainly underground mining and open pit mining; the sand gold mine is mainly open pit mining.
China's rive

"Made in China" modern trams exported to Africa for the first time


The 70% low-floor trams exported from Ethiopia developed by CNR Changchun Railway Vehicle Co., Ltd. went offline in Changchun City, Jilin Province on the 26th. This is the first time that a “Made in China” modern tram has opened to the “Roof of Afric

Suzhou Metro introduces liquid detector

Small 8 hearings next month, Suzhou rail transit line 1,2 line station to enable the security instrument it! Reporter learned yesterday from the rail transit operations department, during the "World Championships" during the 1,2 line will be put into 88 channels The