Colombian coal prepares for Canal expansión
Dave Gambrel
págs. 18-21
Conveyor designers concentrate on safe, high-capacity sistems
Steve Fiscor
págs. 22-27
BelAZ builds the world's largest haul truck
Vladislav Vorotnikov
págs. 28-33
Inventory of U.S. mine rescue training facilities
Laurie Ruberg, Doug Moore, Lisa McFarland
págs. 34-45
Building a high-performance AFC drive
James McClenathan, Roland Hoet
págs. 46-47
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