12 Mn/M²
7.5 Mn/M²
10.5 Mn/M²
9 Mn/M²
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7.5 Mn/M²
7.5 Mn/M²
See lessThe compressive strength of second class bricks should not be less than 7.5 N/mm².
The compressive strength of second class bricks should not be less than 7.5 N/mm².
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