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…
In March, U.S. inflation hit a 40-year high. According to data released by the U.S. Bureau of Labor Statistics, the consumer price index (CPI) rose 7.9% year-on-year and 0.8% month-on-month. The data also showed that U.S.…
Iron ore prices have been surging since early March, with weekly gains of 21% in the first week of the month. Since November 18, 2021, the price of 62% grade Australian fine ore ($87.2 / ton) fell to the "freezing point" since the second half of 2020…
The cold air-conditioning year of 2021 is about to come to an end. Affected by the increase in raw material prices and energy efficiency levels, the average price of air-conditioning products has increased significantly in the first half of the year.…
In the first half of 2021, the prices of various commodities have soared. The rise in the price of industrial raw materials is bound to be transmitted to the downstream, and the high cost will inevitably bring an increase in business risks to enterpr…
Soaring 200%! Another large number of plastic chemical raw materials soared! Recently, the circulated supply of butadiene market is limited, and the supplier price has increased wildly! The rally is like a rainbow! On July 12, Sinopec North China Sal…
Since the outbreak of the epidemic, the international economy has not been able to emerge from the shadow of the epidemic. In addition to our country has emerged from the epidemic quagmire, many countries are still in the epidemic, and the economy is…
Admixtures can be used for almost all kinds of concrete, but suitable admixtures must be selected according to engineering needs, construction conditions and construction technology.…
After the pce superplasticizer is added to the cement, the sodium aluminate and sodium carbonate in its main components react rapidly with the gypsum in the cement to form sodium sulfate in the alkaline solution, so that the gypsum loses its original…
Yellow white waxy solid/glue body. Soluble in water, ethanol, slight solubles in acetone, insolubles in diethylether and benzene. Dodecy dimethylbenzyl ammonium bronmide Dodecy dimethyl ammonium bromide can be obtained from natural plant coconut o…