Due to the global shortage of automotive chips, in the past year, the price of STL9369, the core chip of the body electronic stability system produced by STMicroelectronics, has skyrocketed from 20 yuan to 2,800 yuan (excluding tax), a year-on-year i…
Concrete is a stone mixed with water, sand, stones and some chemical additives, if necessary, in a particular proportion. Foaming occurs when concrete is made due to agitation. The appearance of a large amount of foam will lead to a decrease in the s…
4A molecularsieve is sodium A type silica aluminate. 4A molecular Sieve is capable to adsorb molecules with critical diameters not exceeding 4A. About Molecular Sieves 4A 4A molecularsieve is sodium A type silica aluminate. The molecular Sieve c…