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definition of coal roadheader in myanmar

Currently the everincreasing application of roadheader in the underground is becoming an inevitable alternative in tunnel excavation and coal mining engineering When tunnel boring machines and selective roadheader excavate roadway from hard rock that its protodyakonov coefficients f are more than 8 their working construction and cutting tools impact and wear violently at the same time the working ... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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