A fence with a dimension of 15m long by 20m high including portions below NGL. Determine the number of CHB needed using
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A fence with a dimension of 15m long by 20m high including portions below NGL. Determine the number of CHB needed using
A fence with a dimension of 15m long by 20m high including portions below NGL. Determine the number of CHB needed using 150x200x400mm concrete hollow blocks. Consider 10% wastage.