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Goldfield公司在美国新墨西哥州St.Cloud银矿新建的400吨/日浮选厂已经投产。根据平均储量矿石品位计算,3百万美元的新选
Goldfield Corp. has commissioned a new 400-ton / day flotation plant at the St.Cloud Silver Mine in New Mexico. Calculated on the basis of the average ore grade, a 3 million dollar new election