The Story Behind PORTLAND CEMENT. Why is it called Portland Cement? History of CEMENT
17:08
Como o CONCRETO é fantástico
8:40
What is TUNGSTEN? Discover everything about TUNGSTEN: uses, properties and curiosities.
7:22
What is GRAVEL? Is GRAVEL all the same? GRAVEL Extraction Secrets: Detailed Engineering Process
8:07
What is CEMENT? Everything you need to know about cement. The science behind cement
18:58
Tudo que você precisa saber sobre Cimento Portland!!!
15:01
Como eram as primeiras Geladeiras?
8:45
Tipos de Cimento Portland - Não Erre Mais
29:56