午夜人妻无码AV一区二区,美少年高潮H跪趴扩张小说,富二代精品短视频在线,国产高清在线精品一区,内射少妇36P九色

四川礦山

Service hotline:18989281813
Home>News>Industry News

The 11th China nonferrous metal mining top BBS held in Lhasa

2013-10-12

September 10 to 12, sponsored by the China nonferrous metals association, Tibet HuaYu mining co., LTD., antaike information development co., LTD., to undertake the 11th China nonferrous metal mining top BBS held in Lhasa.

China nonferrous metal mining top BBS is Chinas nonferrous metals industry the highest specifications of the summit. In the three-day event, leading experts from nonferrous metal industry in China to promote Chinas nonferrous metals mining exploration and exploitation, raise the level of saving and comprehensive utilization of mineral resources, promote the "going out" of nonferrous metal, nonferrous metal mineral resources barrier ability, improve the level of mining safety and environmental topics such as carried on the thorough exchange and the discussion.

Back