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The external costs of coal mining the case of collieries.Of coal mining and transportation reported in the global studies look similar bjureby et al.,2008 sevenster et al.,2008 due to the use of similar methodologies and the consideration of more or less similar externalities.Locally, owing to the importance of coal to south africa.
We are an innovative enterprise integrating R & D, production, sales and after-sales service. We have more than 60 years of experience in the field of crushing, beneficiation, sand making and building materials. We serve customers in more than 160 countries around the world.