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Coal mining auger (Patent) | SciTech ConnectA coal-mining auger having (a) a hollow, tubular auger head with a spiral or helical coal conveyor mounted therein in concentric relation to the axis of rotation of ....know more

Exhibits profile - China Coal and Mining Expo 2017China Coal & Mining Expo - China Coal & Mining Expo goes back to 1985, when its first show was held It has since been the trade''s only national event every other year...know more

Contour Highwall MiningWelcome to Contour Highwall Mining, LLC! Contour Highwall Mining, LLC (CHM) is a privately-held company headquartered in Summersville, West ia...know more

Patent US2948520 - Auger boring machine for mining coal ,AUGER BORING MACHINE FOR MINING COAL Filed Sept 7 , 1955 Compton June 19, 1956 Kirkpatrick July 24, 1956 FOREIGN PATENTS Great , Western Boring Equipment ,...know more

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