BOS 27:2000
10MPa concrete masonry units
Licence No : SM/08-05
Valid from 12 August 2008
Expires on 11 August 2011
BOS 29:2000
25MPa-55mm concrete paving blocks
Licence No :SM/08-06
Valid from 12 August 2008
Expires on 11 August 2011
BOS 29:2000
25MPa-60mm concrete paving blocks
Licence No :SM/08-07
Valid from 12 August 2008
Expires on 11 August 2011