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May 05, 2017· Sand mining and gravel extraction picks up every winter, when the water flow is low, and it is easier to mine the sand from the exposed riverbed Nowadays, it is no longer a matter of using manual shovels and spad , In China, demand for sand is greater than anywhere else in the world due to rapid urbanisation
Sand and gravel extraction The sand and gravel extraction industries made extensive use of narrow gauge railways, and several of these lasted into the 1980s - this was one of the last industries to make significant use of narrow gauge industrial railways in the UK
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