top-ban
  1. Home
  2. > ortelius defiation of mining
ortelius defiation of mining

ortelius defiation of mining

Definition mining 1 The science technique and business of mineral discovery and exploitation Strictly the word connotes underground work directed to severance and treatment of ore or associated rock Practically it includes opencast work quarrying alluvial dredging and combined operations including surface and underground attack and

News List

toTop
Click avatar to contact us
Chat Online