When it comes to display technology, in addition to the traditional LCD and LED liquid crystal display screen, OLED (organic light emitting diode) display technology has become a new mainstream.…
Dry and large flow concrete is used to solve the problems of unreasonable gradation of sand and stone, excessive stone powder, machine-made sand, bottom glue, low-grade large flow concrete, and poor waterline and workability after pumping and coagula…
The COVID-19 pandemic has pushed tens of thousands of people out of the workforce, which also has a certain impact on the bhutan birding On Monday (local time), the National Institu…
The COVID-19 pandemic has pushed tens of thousands of people out of the workforce, which also has a certain impact on the bhutan birding…
Russian President says if the European Union imposes an oil embargo, Europe will buy energy at the most expensive price and economic activity in Europe will weaken. Rosneft needs to change its business model. Russia will help facilitate settlement an…
Graphene is a two-dimensional crystal, which consists of carbon atoms with sp2 hybrid orbitals to form two-dimensional carbon nanomaterials with hexagonal honeycomb lattice.…
Polycarboxylate superplasticizer has more advantages than traditional naphthalene and aliphatic superplasticizer in mixing high strength grade concrete, but its advantages of high water reduction cannot be brought into full play when the strength is…
Natural river sand has been exhausted after decades of large-scale mining, concrete production enterprises began to use machine-made sand as fine aggregate on a large scale.…
Brazil, the world's largest sugar producer, has recently switched to ethanol chromium nitride price is predicted to go higher in the future. What is chromium nitride?Metal chromium and nitrogen can form metal chromium nitride with differe…
In the European market, due to the heat wave in Europe, the Rhine River, one of the main traffic arteries in Europe, has fallen sharply, causing logistical problems for barges transporting i…
The Group of Seven leading economies is discussing imposing a cap on Russian oil prices by imposing restrictions on insurance and shipping, according to people familiar with the matter. The potential mechanism would only allow shipments of Russian c…
Recently, US President Joe Biden concluded his first visit to the Middle East since taking office. During the visit, Biden said that the United States will be an active partner in the Middle East for a long time, but Middle East leaders have not clea…
What is Molybdenum Disilicide Powder?The appearance molybdenum di-silicate The gray metallic solid has a melting point around 2030degC, a mass density of 6.26g/cm3, is insoluble with most acids but not hydrofluoric or nitric. Its properties includ…
Polycarboxylate superplasticizer has high surface activity and good foam retention, which will affect the strength of concrete due to excessive gas content.…
What is tungsten oxide? Tungsten oxide has a molecular formula of WO3 and a molecular weight of 231.85. It is a kind of tungstic anhydride, which is a tungstate product. Tungsten oxide includes tungsten trioxide and tungsten dioxide, and there is n…