News
  1. Home
  2. News
  3. coal mining machinery in rheinland

coal mining machinery in rheinland

Clay vein - a body of claylike material that fills a void in a coal bed. Cleat - the vertical cleavage of coal seems. The main set of joints along which coal breaks when mined. Coal dust - particles of coal that can pass a No. 20 sieve. Coal Mine - an area of land and all structures, facilities, machinery, tools,

Get Price List Chat Online