Since April of 2020, the trend of rising oil prices has been maintained, and it is rising globally. The reason for this phenomenon may be that the global economy is slowly recovering, or it may be that last year epidemic has been well controlled. The…
With the wide application of polycarboxylate superplasticizer, the requirement of concrete early strength in practical engineering is more and more prominent, so the polycarboxylate superplasticizer has been the focus of research to meet the early st…
Gold futures for April 2022, the most actively traded contract on the New York Mercantile Exchange gold futures market, rose 0.2 U.S. dollars, or 0.01 percent, to close at 1,929.5 U.S. dollars an ounce on Friday. Federal Reserve Chairman Jerome Powel…
What is Nitinol alloy? Alloys Ni-Ti -NOEL contain 50% nickel and 50% titanium. Nickel and titanium are equally distributed and each is allocated half of the time. It is possible to adjust its temperature range by controlling the composition. The temp…