According to the United Nations website, in the past week, countries reported an 8% increase in new crown cases to the WHO, with more than 11 million positive tests. Tedros noted that although some countries hav…
According to the statistics: On March 3, the main price of wire screws rose in China. Among the 52 sample cities, 33 cities rose, with an increase of 10-50, accounting for 63.46%, while the remaining 19 cities remained stable for the time being, acco…
Aluminum nitride ceramics powder for sale is prepared by laser flame jet fusion method . T he obtained product has high purity, uniform particle size distribution, clean surface, high sphericity, no residual impurities, easy dispersion, and good comp…
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