machinery used in gold mining 」
Openpit mining is a method in which an ore is removed by digging a pit in the ground and is used to remove copper gold iron as well asUsed To Collect Gold From Crushed Ore Mining Machinery. Openpit mining is a method in which an ore is removed by digging a pit in the ground and is used to remove copper gold iron as well as nonmetallic minerals it is normally used when the rock layer above the