The specific surface $(($m$^(2))/($k$)$g$)$ of the product is close to $($A$)20($ The theoretical power $($W$)$ requirements to grind the material is close to $($A$)1029($C$)373($B$)1716($D$)2089$ The power $($kW$)$ required by the equipment when loaded is close to $($A$)6\mathrm{.}3($C$)4\mathrm{.}0($B$)6\mathrm{.}7($D$)6\mathrm{.}0$