A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch .
EquipmentMine is a searchable database of new, used and surplus mining equipment and parts available for sale.
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Replacement or spare pressure bowl for Szegvari batch type attritor mill. Unit fits Szegvari size 1S mill and features stainless steel contact parts, jacket for .
Located on the river Nene, Yarwell Mill Country Park, a beautiful corner of the English countryside offers unrivalled peace and tranquillity.
Fossil Knightia fish for sale from the Green River Formation.
A short history of coal mining in Northumberland, Durham and Newcastle upon Tyne from Medieval times to the 1990s
The history of manufactured gas, important for lighting, heating, and cooking purposes throughout most of the 19th century and the first half of the 20th century .
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The Glenbow Museum - Where the World Meets the West > Search