While the US presents itself as an advocate of expanding vaccine supplies, the world is rapidly becoming more dependent on China for vaccines as the COVID-19 pandemic makes it difficult for India to fulfill its vaccine supply agreement. "Not onl...…
Naphthalene Sulfonate Water Reducing Agent is the product of naphthalene sulfonated by sulfuric acid and then condensed with formaldehyde, which belongs to an anionic surfactant.…
The cement foaming agent is the key to the quality of foamed concrete. A good cement foaming agent can be made into high-quality foamed concrete.…
Cement foaming agent is the key material in the production of foamed concrete. Whether it can produce foamed concrete with suitable density depends on the selection of a suitable cement foaming agent. There are many types of cement foaming agents on…