3-12 Kinds of Concrete Additives Used in Refractory Castable, Plastic and Ramming Materials (3)
In this article, defoamer, anti-shrinkage agent, preservation agent, and inhibitor will be talked about.…
In this article, defoamer, anti-shrinkage agent, preservation agent, and inhibitor will be talked about.…
4A Molecular sieve is NaA molecularsieve, which is the hydrate of crystallized silicon aluminate salt. The characteristics of 4A molecular Sieve Powder include stable quality and moderate particle size. They are made up of manufactured products. Ab…
Under the spread of the new crown epidemic, after Americans experienced life and death, they set off the largest "resignation wave" in history, and the number of resignations broke the highest record since statistics began in 2000. Since April this y…