In the UK, more than 100 schools were closed because of the danger of collapse In the UK, many schools use Concrete autoclaved with aerated air (RAAC). This is a concrete material that is lighter. In 2018, the roof collapsed of a primary-school…
Chinese state media have urged investors to remain calm after this week stock market rout wiped out hundreds of billions of dollars in market value. China securities Times, a state-run newspaper, published a commentary on Wednesday acknowledging &quo...…
KMPASS is a professional Praseodymium Oxide supplier to provide high quality Praseodymium Oxide Pr6O11 Granules.…
The application of various concrete admixtures can not only improve the performance of concrete, but also promote the development of new concrete technologies, promote the application of industrial by-products in cementitious material systems, and al…
Allotrope of carbon, often containing a small amount of iron and silicon dioxide. It can conduct electricity. The chemical property is not active. It has corrosion resistance to acid and alkali. It can be oxidized into organic acid by a strong oxidan…