South Australia has a significant mining industry, with minerals continually leading the State’s exports and now valued at $2.8 billion a year.Over the past five years the number of South Australian mines has increased from five to 11, and there are about 30 other projects in the advanced exploration, assessment, pre-feasibility and feasibility stages.

Recently, by stimulating investment in infrastructure policy of expanding domestic demand, local roads, railways, etc. is increasing, the urgent need to supply a large amount of sand and gravel. Meanwhile, construction of the continuous development and innovation, to further promote the rapid development of China’s sand and gravel industry, sand production line process to produce…