MGO%      SiO2%      CaO%      LOI%  
<95             <1                <1.5         <3   
<94             <2                <  2          <4
<92             <3                <2            <5

<90            <4                 <2            <6

<87            <5                 <3            <7

<85            <6                 <3            <8

 <80            <8                <5           <10

Usage:Mainly used in improving field,additives agent,medium-low synthesized material,refractory in vonverter, medium-high magnesite and synthesized material etc.