Rokbak ADTs move half a million tons of sand and gravel annually at Alberta-based aggregate pit
Every year, half a million tons of sand and gravel are produced from Calgary Rolling Mix Concrete's crushing operation in Alberta, Canada — providing high-quality concrete for everything from foundations and walls to driveways, sidewalks, patios and more.
machineryasia 
Every year, half a million tons of sand and gravel are produced from Calgary Rolling Mix Concrete's crushing operation in Alberta, Canada — providing high-quality concrete for everything from foundations and walls to driveways, sidewalks, patios and more.
