The common problems in the use and maintenance of lithium batteries
The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V…
The lithium-ion battery has a nominal voltage of 3.7V (3.6V) and a charge cut-off voltage of 4.2V…
In the process of concrete mixing, the mixing method of admixture has a great influence on the effect of admixture.…
Ethoxylated propoxylated, a non-ionic low-foam surfactant, has a high resistance to hardwater and electrolytes as well as excellent lubrication properties. The ethoxylated and propoxylated: Ethoxylated propoxylated has excellent emulsification of…
Recently, the Russian President hosted a meeting with oil and gas industry representatives. He said that the refusal of some Western countries to cooperate normally with Russia and deny some Russian energy resources has hit millions of European peop…