Daim ntawv thov:Rau kev tshem tawm cov hmoov, granular, thiab thaiv cov ntaub ntawv hauv cov cement, cov ntaub ntawv hauv tsev, tshuaj lom neeg, thee, nplej, yas, thiab refractory industries, thiab lwm yam. Txuas mus rau cov kav xa dej thiab nruab vertically.