Brand Specification	Low carbon mg-o brick
MgO   ≥  %	85
C      ≤  %	8
Apparent porosity  ≤  %	5
Bulk density  g/cm3   ≥  %	3.0
Compressive strength (MPa) ≥  %	50
High temperature bending Strength (1400*0.5h) (MPa) ; ≥	12