Portland cement
Faça login para que possamos notificá-lo sobre uma resposta
Portland cement clinker is made by heating, in a cement kiln, a mixture of raw materials to a calcining temperature of above 600 °C (1,112 °F) and then a fusion temperature, which is about 1,450 °C (2,640 °F) for modern cement
Nenhum comentário encontrado
Inscrever-se