4A Molecular sieve is NaA molecularsieve, which is the hydrate crystalline silicon alluminate and salt. The characteristics of 4A molecular Sieve Powder include stable quality and moderate particle size. They are made up of formed products. About 4…
Other five kinds of water-reducing agents: sulfamate high-efficient water reducer, fatty acids high-efficient water reducer, HSB aliphatic superplasticizer, powder polycarboxylate, casein will be introduced.…
Russian president demanded that exports of Russian gas to "unfriendly" countries be settled in rubles. The demand has raised concerns in Germany about possible supply disruptions and the impact on industry and households if utilities do not pay in ro…