已经有次观看 wencong在2013-07-12发布

Channel：Tungsten 标签： Chapter  tungsten,  tailings,  water  seepage 

简介：Chapter Tungsten announcement said Lei Shi tungsten mine tailings seepage problem, Lei Shi tungsten mine tailings in April 2009 put into trial operation found that the presence dam leakage, by experts for safety after this rectification, respectively, in the end of April 2009 and July curtain grouting cement and other anti-seepage treatment.