Welcome to RANIBOS CRUSHING Machinery[email protected]
Two basic methods of extracting coal, i.Surface mining and underground mining, are introduced.Firstly, two main methodsstrip mining and open-pit miningof surface mining are discussed.In underground mining, room and pillar, shortwall, and longwall mining methods are introduced.Finally, a brief prospect for coal exploration and mining.
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.