Brunel cement find is world first
Brunel cement find is world first
Interesting archaeological find pushes back the date of the first major usage of Portland Cement.
TechnoPrimitive
Rumblings, Ramblings, and Ruminations
Panorama Theme by 
Themocracy
Brunel cement find is world first
Interesting archaeological find pushes back the date of the first major usage of Portland Cement.
Panorama Theme by Themocracy